Choose the best answer to fill in the blank.
6. You can save money while shopping by only buying ________ you need.
A. this B. what C. it D. that
7. If we ________ all the trees, there will be no more oxygen for us to breathe
.A. cut down B. cut off C. cuts D. cutting
8. Our dream house will use only solar energy so that we can make the ________ clean and green.
A. home B. nature C. kitchen D. environment
9. A hi-tech robot will help us ________ children while we are away.
A. look in B. look at C. look out D. look after
10. We should have recycling binsin each classroom for ________ things
.A. reused B. use C. reuse D. reusable
11. With a smart watch, you will ________ your friends in other countries.
A. speak B. say C. talk D. contact
12. ________ pencils and paper, every studentwill have a computer.
A. Instead of B. By C. at D. Instead
13. “Do you think we should put a ________ bin in every classroom in order to keep it clean?”.
A. recyclable B. recycling C. recycled D. reusable
14. “Why do you often forgetto ________ the lights when you go out of the classroom?”
A. close B. turn off C. turn on D. shut down
15. We might have a ________ TV to watch TV programmes from space.
A. automatic B. wireless C. local D. remote
16. I any letter from him yet.
A. haven’t received B. received C. will receiveD. don’t receive
XIN CTLHT VÀ 5 *