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Điền từ còn thiếu vào ô trống
Most of the world's surface is water. We may know the......land.......very well, but we know very.........little......about the oceans.
Until recently, man could not stay underwater for long. A pearl diver,........for.........example, could not stay underwater for longer..........than.......two minutes. But now, with speacial.........breathing.........equipment, a diver can stay underwater for a long time. After the invention of this equipment, man could..........swim.......freely underwater and scuba-diving became a popular.........sport..........
1. Swimming can be fun but accidents can happen
2. Until recently, man could not stay underwater for long
3. Before the invention of special breathing equipment, man couldn't swim freely under water
4. Our parents should give us the opportunity to learn to swim
Until recently, man could not stay underwater *** long
==>TOO
Until recently, man could not stay underwater FOR long.
Complete text with available words.
since ; yet ; had ; already ; ago
for ; have ; already ; never ; ever
I have always been very fit and healthy, and i have never had a serious illness. However, a couple of weeks ago , I caught the flu. I must admit that until then, I had not realized just how unpleasant the flu could be.I have a high temperature for nearly a week, and my whole body hurt. i don't think I have ever felt so miserable. It's taking me ages to get my strength back. It really bothers me that I haven't had enough energy to play football since I got ill. In fact, I have already been to the doctor to ask if it's normal to feel weak for so long. He say's I'll soon feel better. Apparently I'm lucky. For some people , especially the old and weak, the flu can be very serious. Doctors have tried for years to find a cure for flu, but they haven't found one. Yet fortunately, researchers have developed a vaccine which gives effective protection against the disease. According to my doctor, most of his elderly patients have had received their flu shots
I .have.. always been very fit and healthy, and i have .never.. had a serious illness. However, a couple of weeks .ago.., I caught the flu. I must admit that until then, I had not realized just how unpleasant the flu could be.I .had.. a high temperature for nearly a week, and my whole body hurt. i don't think I have .already.. felt so miserable. It's taking me ages to get my strength back. It really bothers me that I haven't had enough energy to play football .since.. I got ill. In fact, I have .already.. been to the doctor to ask if it's normal to feel weak for so long. He say's I'll soon feel better. Apparently I'm lucky. For some people , especially the old and weak, the flu can be very serious. Doctors have tried .yet.. years to find a cure for flu, but they haven't found one. .For.. fortunately, researchers have developed a vaccine which gives effective protection against the disease. According to my doctor, most of his elderly patients have .ever. received their flu shots.
1 My car was scratched on the door last week
2 I didn't know the man who walked into my office yesterday
3 The TV programme was too complicated for the children to understand
4 If I were you, I would see a dentist about that tooth
5 I have never eaten such a good meal
1. Most of the girls in my class are 10 years old
2. the doctor gave him some medicine to cure the flu
3. until recently, man could not stay underwater for long . ( ko phai too)
4. why didn't our school organize a badminton club?
5. we stay here longer than we did last summer holiday
6. did Parker do this homework last night? no, he didn't
1. Most _ _ the girls in my class are 10 years old=>of
2. the doctor gave him some _ _ _ _cine to cure the flu =>medicine
3. until recently, man could not stay underwater _ _ _ long. ( ko phai too)
=>too
4. why didn't our school or_ _ _ _ ze a badminton club?
=>organize
5. we stay here longer than we _ _ _ last summer holiday
=.did
6. did Parker do this homework _ _ _t night? no, he didn't
=>last