10. People try to avoid public transportation delays by using their own cars, and this 　　　　　creates further problems.

A. in short　　　　　　 B. in case

C. in doubt　　　　　　 D. in turn

9. The World Health Organization gave a warning to the public without any　　　　

when the virus of H1N1 hit Mexico in April, 2009.

A. delay　　　　　　　　 B. effort

C. schedule　　　　　　 D. consideration

8. I like her,　　　　 　she can be annoying at times.

A. ever since　　　　　 B. now that

C. even though　　　　　 D. even as

7.-Drinking is bad for your health.

-Yes, I know. But I simply can’t　　　　 　.

A. give it up　　　　　 B. give it in

C. give it out　　　　　 D. give it away

6. He 　　　　　the person referred to be put into prison.

A. said　　　　　　　　 B. demanded

C. agreed　　　　　　　 D. thought

5. To understand the grammar of the sentence, you must break it 　　　　　into parts.

A. down　　　 B. up　　　 C. off　　 D. out

4. Not until all the fish died in the river　　　　 　　how serious the pollution was.

A. did the villagers realize　　 B. the villagers realized

C. the villagers did realize　　 D. didn’t the villagers realize

3. -Why? Where is the key to the meeting room?

-Dear me! I　　　　 　it in the taxi.

A. should have left　　 B. must have left

C. need have left　　　 D. can have left