6. If we ________ waste paper, we will save a lot of trees.
A. repeat B. recycle C. rewrite D. remake
7. If we plant more trees in the school yard, the school will become a ________ place.
A. greener B. darker C. dirtier D. more polluted
8. “Why do you often forget to ________ the lights when you go out of the classroom?”
A. Turn on B. turn off C. close D. shut down
9. “What can we do ________ air pollution?”
A. reduce B. to reduce C. reducing D. to reducing
10. “Do you think robots can work longer than people ________ getting tired?”
A. but B. with C. without D. of
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III. Match a question in column A with its answer in column B.
A B 1. How heavy is Mai? a. I like cartoons. 2. What kinds of TV programs do you like? b. Because I got up late. 3. Why did you come to class late? c. He should go to the movie theater. 4. Where should Nam go to relax? d. She is forty kilos. 89236 -
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