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1. - “Have you ever visited Niagara Falls?” - “Yes, twice. …….”

A. Good idea. B. It’s amazing C. Absolutely not D. I will

2. Light pollution has a wide range of negative effects________ I’m human health.

A. on B. of C. for D. to

3. In many places, they build cooling towers cool ___the water from power stations.

A. up B. down C. off D. with

4. Grace didn’t feel good, ____she couldn’t go out.

A. but B. and C. because D. so

5. He hasn't written to us_______ he left.

A. when B. for C. because D. since

6. Water pollution ___the death of all forms of life in the water bodies.

A. leads to B. results of C. creates D. due to

7. Grace didn’t feel good, ____she couldn’t go out.

A. but B. and C. because D. so

8. We’ve already booked our holiday. We _____to Scotland in July.

A. are going B. go C. have gone D. went

9. The train _____at 6:30 in the morning.

A. has arrived B. will arrive C. is arriving D. arrives

10. Mark and I ___basketball after school today. Do you want to play too?

A. play B. are playing C. played D. have played