Exercise 6: Gap - filling: Choose the suitable words from the box to complete the sentences.
economical chop wisely inventions submarine
contributed versatile earbuds access games
1. They say that it is more convenient when ________ are used for listening to music without disturbing other people.
2. This kind of car is very ________, so we do not have to spend too much money on buying petrol or diesel.
3. The computer is said to be one of the most significant ________ of human beings.
4. If you use the internet ________, you will be able to discover a variety of new things.
5. In our modem life, people have loads of work to do, so they want to own the very ________ devices which can do many things.
6. We can use a laptop or a smartphone to get ________ to the Internet.
7. To feel at ease, some children use a handheld video game device to play computer ________.
8. A food processor is normally used to ________ up or mix food.
9. The ________, which can travel underwater, imitates a dolphin’s shape.
10. Science and technology have ________ to environmental protection and natural preservation
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