Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of...

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions

According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he invented a device that he called a “looker”, a long thin tube where light passed in a straight line from the front lens to the viewing lens at the other end of the tube. In 1608 he tried to sell his invention unsuccessfully. In the same year, someone described the “looker” to the Italian scientists Galileo, who made his own version of the device. In 1610 Galileo used his version to make observations of the Moon, the planet Jupiter, and the Milky Way. In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope

When Isaac Newton began using Galileo’s telescope more than a century later, he noticed a problem. The type of telescope that Galileo designed is called a refractor because the front lens bends, or refracts, the light. However, the curved front lens also caused the light to the separated into colors. This meant that when Newton looked through the refracting telescope, the images of bright objects appeared with a ring of colors around them. This sometimes interfered with viewing. He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector

Very much larger optical telescopes can now be found in many parts of the world, built on hills and mountains far from city lights. The world’s largest refracting telescope is located at the Yerkes Observatory in Williams Bay, Wisconsin. Another telescope stands on Mount Palomar in California. This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains. A fourth famous reflector telescope, the Keck Telescope situated on a mountain in Hawaii, does not use a single large mirror to collect the light. Instead, the Keck uses the combined light that falls on thirty-six mirrors

Radio telescopes, like optical telescopes allow astronomers to collect data from outer space, but they are different in important ways. First of all, they look very different because instead of light waves, they collect radio waves. Thus, in the place of lenses or mirror, radio telescopes employ bowl-shaped disks that resemble huge TV satellite dished. Also, apart from their distinctive appearance, radio telescope and optical telescopes use different methods to record the information they collect. Optical telescopes use cameras to take photographs of visible objects, while radio telescopes use radio receivers to record radio waves from distant object in space

Which of the following is NOT true about Hans Lippershey?

A. He owned a shop

B. He was a Dutch

C. He sold his invention in 1608

D. He got his idea of a telescope from the kids in his shop

1

DH

Dương Hoàn Anh

1 tháng 3 2017

Đáp án C

Điều nào sau đây là không đúng về Hans Lippershey?

Đáp án C – Anh ấy đã bán vật phát minh của anh ấy vào năm 1608

Dẫn chứng – Câu 4 – Đoạn 1: “In 1608 he tried to sell his invention unsuccessfully”

Tạm dịch: Năm 1608 anh ấy đã cố bán vật phát minh của anh ấy không thành công

=> Không bán được

Các đáp án khác đều được nhắc đến trong bài

A – Anh ấy làm chủ 1 cửa hàng

B – Anh ấy là người Hà Lan

D – Anh ấy có từ tưởng về kính viễn vọng từ những đứa trẻ trong cửa hàng anh ấy

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he...

LQ

Lê Quỳnh Anh

8 tháng 1 2017

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions

According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he invented a device that he called a “looker”, a long thin tube where light passed in a straight line from the front lens to the viewing lens at the other end of the tube. In 1608 he tried to sell his invention unsuccessfully. In the same year, someone described the “looker” to the Italian scientists Galileo, who made his own version of the device. In 1610 Galileo used his version to make observations of the Moon, the planet Jupiter, and the Milky Way. In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope

When Isaac Newton began using Galileo’s telescope more than a century later, he noticed a problem. The type of telescope that Galileo designed is called a refractor because the front lens bends, or refracts, the light. However, the curved front lens also caused the light to the separated into colors. This meant that when Newton looked through the refracting telescope, the images of bright objects appeared with a ring of colors around them. This sometimes interfered with viewing. He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector

Very much larger optical telescopes can now be found in many parts of the world, built on hills and mountains far from city lights. The world’s largest refracting telescope is located at the Yerkes Observatory in Williams Bay, Wisconsin. Another telescope stands on Mount Palomar in California. This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains. A fourth famous reflector telescope, the Keck Telescope situated on a mountain in Hawaii, does not use a single large mirror to collect the light. Instead, the Keck uses the combined light that falls on thirty-six mirrors

Radio telescopes, like optical telescopes allow astronomers to collect data from outer space, but they are different in important ways. First of all, they look very different because instead of light waves, they collect radio waves. Thus, in the place of lenses or mirror, radio telescopes employ bowl-shaped disks that resemble huge TV satellite dished. Also, apart from their distinctive appearance, radio telescope and optical telescopes use different methods to record the information they collect. Optical telescopes use cameras to take photographs of visible objects, while radio telescopes use radio receivers to record radio waves from distant object in space

When was Galileo’s invention called “telescope”?

A. in 1611

B. in 1610

C. in 1608

D. in 1600

1

DH

Dương Hoàn Anh

8 tháng 1 2017

Đáp án A

Khi nào phát minh của Galileo được gọi là Kính viễn vọng

Đáp án A – năm 1611

Dẫn chứng – Câu cuối – Đoạn 1: “In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope”

Tạm dịch: Vào tháng 4 năm 1611, Galileo đã đưa cho những vị khách của mình xem thiết bị của mình tại một bữa tiệc vinh danh ông ấy. Một trong những vị khách đề xuất 1 cái tên cho thiết bị này: Kính viễn vọng

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he...

LQ

Lê Quỳnh Anh

16 tháng 3 2019

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions

According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he invented a device that he called a “looker”, a long thin tube where light passed in a straight line from the front lens to the viewing lens at the other end of the tube. In 1608 he tried to sell his invention unsuccessfully. In the same year, someone described the “looker” to the Italian scientists Galileo, who made his own version of the device. In 1610 Galileo used his version to make observations of the Moon, the planet Jupiter, and the Milky Way. In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope

When Isaac Newton began using Galileo’s telescope more than a century later, he noticed a problem. The type of telescope that Galileo designed is called a refractor because the front lens bends, or refracts, the light. However, the curved front lens also caused the light to the separated into colors. This meant that when Newton looked through the refracting telescope, the images of bright objects appeared with a ring of colors around them. This sometimes interfered with viewing. He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector

Very much larger optical telescopes can now be found in many parts of the world, built on hills and mountains far from city lights. The world’s largest refracting telescope is located at the Yerkes Observatory in Williams Bay, Wisconsin. Another telescope stands on Mount Palomar in California. This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains. A fourth famous reflector telescope, the Keck Telescope situated on a mountain in Hawaii, does not use a single large mirror to collect the light. Instead, the Keck uses the combined light that falls on thirty-six mirrors

Radio telescopes, like optical telescopes allow astronomers to collect data from outer space, but they are different in important ways. First of all, they look very different because instead of light waves, they collect radio waves. Thus, in the place of lenses or mirror, radio telescopes employ bowl-shaped disks that resemble huge TV satellite dished. Also, apart from their distinctive appearance, radio telescope and optical telescopes use different methods to record the information they collect. Optical telescopes use cameras to take photographs of visible objects, while radio telescopes use radio receivers to record radio waves from distant object in space

What can be inferred about the first optical telescope?

A. It was bought by children

B. It was invented in America

C. It was sold by a shop owner

D. It was invented by accident

1

DH

Dương Hoàn Anh

16 tháng 3 2019

Đáp án D

Điều gì có thể được suy ra về kính viễn vọng quang học đầu tiên? Đáp án D – Nó được phát minh một cách ngẫu nhiên

Dẫn chứng – Câu đầu tiên – Đoạn 1: “According to some accounts, the first optical telescope was accidentally invented in the 1600s by children ….. “

Tạm dịch: Theo một vài báo cáo, kính viễn vọng quang học đầu tiên được phát minh 1 cách vô tình vào những năm 1600 bởi trẻ em…

Ta có: by chance = accidentally : vô tình, ngẫu nhiên

Các đáp án khác

A – Nó được mua bởi trẻ em

B – Nó được phát minh ở Mỹ

C – Nó được bán bởi chủ cửa hàng

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he...

LQ

Lê Quỳnh Anh

26 tháng 4 2018

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions

According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he invented a device that he called a “looker”, a long thin tube where light passed in a straight line from the front lens to the viewing lens at the other end of the tube. In 1608 he tried to sell his invention unsuccessfully. In the same year, someone described the “looker” to the Italian scientists Galileo, who made his own version of the device. In 1610 Galileo used his version to make observations of the Moon, the planet Jupiter, and the Milky Way. In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope

When Isaac Newton began using Galileo’s telescope more than a century later, he noticed a problem. The type of telescope that Galileo designed is called a refractor because the front lens bends, or refracts, the light. However, the curved front lens also caused the light to the separated into colors. This meant that when Newton looked through the refracting telescope, the images of bright objects appeared with a ring of colors around them. This sometimes interfered with viewing. He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector

Very much larger optical telescopes can now be found in many parts of the world, built on hills and mountains far from city lights. The world’s largest refracting telescope is located at the Yerkes Observatory in Williams Bay, Wisconsin. Another telescope stands on Mount Palomar in California. This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains. A fourth famous reflector telescope, the Keck Telescope situated on a mountain in Hawaii, does not use a single large mirror to collect the light. Instead, the Keck uses the combined light that falls on thirty-six mirrors

Radio telescopes, like optical telescopes allow astronomers to collect data from outer space, but they are different in important ways. First of all, they look very different because instead of light waves, they collect radio waves. Thus, in the place of lenses or mirror, radio telescopes employ bowl-shaped disks that resemble huge TV satellite dished. Also, apart from their distinctive appearance, radio telescope and optical telescopes use different methods to record the information they collect. Optical telescopes use cameras to take photographs of visible objects, while radio telescopes use radio receivers to record radio waves from distant object in space

Where does the largest reflecting telescope stand?

A. in Wisconsin

B. in California

C. in Hawaii

D. in Caucasus Mountains

1

DH

Dương Hoàn Anh

26 tháng 4 2018

Đáp án D

Kính viễn vọng phản xạ lớn nhất đứng ở đâu?

Đáp án D - ở dãy núi Caucasus

Dẫn chứng – Câu 4 – Đoạn 3: “This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains.”

Tạm dịch: Kính viễn vọng phản xạ khổng lồ này là kính viễn vọng phản xạ lớn nhất trong nhiều năm cho đến khi kính viễn vọng phản xạ lớn hơn được xây dựng ở dãy núi Caucasus.

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he...

LQ

Lê Quỳnh Anh

4 tháng 7 2019

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions

According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he invented a device that he called a “looker”, a long thin tube where light passed in a straight line from the front lens to the viewing lens at the other end of the tube. In 1608 he tried to sell his invention unsuccessfully. In the same year, someone described the “looker” to the Italian scientists Galileo, who made his own version of the device. In 1610 Galileo used his version to make observations of the Moon, the planet Jupiter, and the Milky Way. In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope

When Isaac Newton began using Galileo’s telescope more than a century later, he noticed a problem. The type of telescope that Galileo designed is called a refractor because the front lens bends, or refracts, the light. However, the curved front lens also caused the light to the separated into colors. This meant that when Newton looked through the refracting telescope, the images of bright objects appeared with a ring of colors around them. This sometimes interfered with viewing. He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector

Very much larger optical telescopes can now be found in many parts of the world, built on hills and mountains far from city lights. The world’s largest refracting telescope is located at the Yerkes Observatory in Williams Bay, Wisconsin. Another telescope stands on Mount Palomar in California. This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains. A fourth famous reflector telescope, the Keck Telescope situated on a mountain in Hawaii, does not use a single large mirror to collect the light. Instead, the Keck uses the combined light that falls on thirty-six mirrors

Radio telescopes, like optical telescopes allow astronomers to collect data from outer space, but they are different in important ways. First of all, they look very different because instead of light waves, they collect radio waves. Thus, in the place of lenses or mirror, radio telescopes employ bowl-shaped disks that resemble huge TV satellite dished. Also, apart from their distinctive appearance, radio telescope and optical telescopes use different methods to record the information they collect. Optical telescopes use cameras to take photographs of visible objects, while radio telescopes use radio receivers to record radio waves from distant object in space

When did Newton start to use Galileo’s telescope?

A. in the 17^th century

B. in the 18^th century Galileo

C. in the 16^th century

D. in the 15^th century

1

DH

Dương Hoàn Anh

4 tháng 7 2019

Đáp án B

Newton bắt đầu sử dụng kính viễn vọng của Galileo khi nào?

Đáp án B – thế kỉ 18

Ta có Câu cuối – Đoạn 1: “In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope”

Tạm dịch: Vào tháng 4 năm 1611, Galileo đã đưa cho những vị khách của mình xem thiết bị của mình tại một bữa tiệc vinh danh ông ấy. Một trong những vị khách đề xuất tên cho thiết bị này là: Kính viễn vọng

Câu đầu – Đoạn 2: When Isaac Newton began using Galileo’s telescope more than a century later,

Tạm dịch: Khi Isacc Newton bắt đầu sử dụng kính viễn vọng của Galileo 1 thế kỉ sau,

Vậy 1 thế kỉ sau là vào khoảng năm 1711

Ta có: Thế kỉ 18 là khoảng thời gian tính từ thời điểm năm 1701 đến hết năm 1800, nghĩa là bằng 100 năm, trong lịch Gregory.

Các đáp án khác

A – thế kỉ 17

C – thế kỉ 16

D – thế kỉ 15

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he...

LQ

Lê Quỳnh Anh

6 tháng 6 2018

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions

According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he invented a device that he called a “looker”, a long thin tube where light passed in a straight line from the front lens to the viewing lens at the other end of the tube. In 1608 he tried to sell his invention unsuccessfully. In the same year, someone described the “looker” to the Italian scientists Galileo, who made his own version of the device. In 1610 Galileo used his version to make observations of the Moon, the planet Jupiter, and the Milky Way. In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope

When Isaac Newton began using Galileo’s telescope more than a century later, he noticed a problem. The type of telescope that Galileo designed is called a refractor because the front lens bends, or refracts, the light. However, the curved front lens also caused the light to the separated into colors. This meant that when Newton looked through the refracting telescope, the images of bright objects appeared with a ring of colors around them. This sometimes interfered with viewing. He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector

Very much larger optical telescopes can now be found in many parts of the world, built on hills and mountains far from city lights. The world’s largest refracting telescope is located at the Yerkes Observatory in Williams Bay, Wisconsin. Another telescope stands on Mount Palomar in California. This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains. A fourth famous reflector telescope, the Keck Telescope situated on a mountain in Hawaii, does not use a single large mirror to collect the light. Instead, the Keck uses the combined light that falls on thirty-six mirrors

Radio telescopes, like optical telescopes allow astronomers to collect data from outer space, but they are different in important ways. First of all, they look very different because instead of light waves, they collect radio waves. Thus, in the place of lenses or mirror, radio telescopes employ bowl-shaped disks that resemble huge TV satellite dished. Also, apart from their distinctive appearance, radio telescope and optical telescopes use different methods to record the information they collect. Optical telescopes use cameras to take photographs of visible objects, while radio telescopes use radio receivers to record radio waves from distant object in space

What did Newton do with Galileo’s telescope?

A. He called it reflector

B. He sent it back to Galileo

C. He improved it

D. He stopped using it after his notice

1

DH

Dương Hoàn Anh

6 tháng 6 2018

Đáp án C

Newton đã làm gì với kính viễn vọng của Galileo?

Đáp án C – Ông ấy cải tiến nó

Dẫn chứng – Câu 6 – 7 – 8 – Đoạn 2: “He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector “

Tạm dịch: Ông ấy đã giải quyết vấn đề này bằng cách thiết kế 1 loại kính viễn vọng mới cái sử dụng 1 cái gương cong. Cái gương này tập trung ánh sáng và phản chiếu 1 chùm ánh sáng đến thị kính ở đầu kia của kính viễn vọng. Bởi vì Newton sử dụng 1 gương, nên kính viễn vọng của ông ấy được gọi là kính viễn vọng khúc xạ

Các đáp án khác

A – Ông ấy gọi nó là kính nhìn xa khúc xạ

B – Ông ấy gửi lại nó cho Galileo

D – Ông ấy dừng việc sử dụng nó sau nhận thấy của mình

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. The Microscope One of the most important inventions in the development of science and medicine was the microscope. It was (23) ........... the principle that light could be “refracted” or bent, by a glass lens. It was soon discovered that...

LQ

Lê Quỳnh Anh

8 tháng 1 2018

1

DH

Dương Hoàn Anh

8 tháng 1 2018

Chọn đáp án C

- in size (phrase): về kích thước, độ lớn

“It was soon discovered that tiny objects could be magnified in size when viewed through a glass lens...” (Người ta đã sớm khám phá ra rằng những vật thể nhỏ có thể được phóng to về kích thước khi được quan sát qua một thấu kính thủy tinh...)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. The Microscope One of the most important inventions in the development of science and medicine was the microscope. It was (23) ........... the principle that light could be “refracted” or bent, by a glass lens. It was soon discovered that tiny...

LQ

Lê Quỳnh Anh

27 tháng 5 2018

1

DH

Dương Hoàn Anh

27 tháng 5 2018

Chọn đáp án A

- be based on/ upon: được dựa vào, căn cứ vào

E.g: The film is based on a real-life story. (Bộ phim được dựa theo một câu chuyện đời thực.)

" One of the most important inventions in the development of science and medicine was the microscope. It was based upon the principle that light could be “refracted” or bent, by a glass lens. (Một trong những phát minh quan trọng nhất trong sự phát triển của khoa học và y học là kính hiển vi. Nó hoạt động dựa theo nguyên tắc khúc xạ ánh sáng qua thấu kính thủy tinh).

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. The Microscope One of the most important inventions in the development of science and medicine was the microscope. It was (23) ........... the principle that light could be “refracted” or bent, by a glass lens. It was soon discovered that tiny objects could be magnified (24) ........... size when viewed...

LQ

Lê Quỳnh Anh

14 tháng 4 2019

1

DH

Dương Hoàn Anh

14 tháng 4 2019

Chọn đáp án D

Cấu trúc: - It was not until + S + V2/ed ... + that + ... (Mãi cho đến khi... thì...)

E.g: It was not until midnight that I went home. (Mãi cho đến nửa đêm thì tôi mới về nhà.)

"... it was not until the 13th and 14th centuries in Europe that it was put to practical use in the form of eyeglasses” (nhưng mãi cho đến thế kỉ 13 và 14 thì ở châu Âu nó mới được đưa vào sử dụng thực tiễn dưới hình thức kính mắt)