1. ______ air is one of the many problems we have to solve

A. Pure B. Polluted C. Dust D. Pleasant

2. I'll be in trouble if I ______ my passport.

A. lose B. will lose C. lost D. would lose

3. We can eat at home or, ________ you prefer, we can go to a restaurant.

A. when B. whether C. if D. which

4. If it is raining this evening, I_________.

A. will go out B. don’t go out C. go out D. won’t go out

5. Minh’s English is excellent. He speaks________.

A. perfectly English B. English perfectly

C. perfect English D.English perfect

6. I’m disappointed _________ people have spoiled this area.

A that B. when C. if D. how

7. He ________ to find a job but he had no luck.

A. hardly tried B. hard tried C. tried hardly D. tried hard

8. We couldn’t go on a picnic as planned __________ it was raining.

A. however B. but C. because D. so

9. If he ________ hard today, can he have a holiday tomorrow?

A. works B. will work C. worked D. would work

10. ________we were tired, we sat down beside the stream.

A. Because of B. If C. As D. And

11. He _________to find a job, but he had no luck.

A. tried hard B. hardly tried C. tried hardly D. try hardly

12. Solar energy doesn’t cause __________.

A. pollution B. polluted C. pollute D. pollutant

13. Are you lookingh forward ___________ my letter ?

A. to see B. to seeing C. saw D. seeing