9. I don’t know what ___ last night.　

A. did he happen　 　　　　B. he happened　

C. he did happen　 　　D. happened to him

8. What ___ happened ___ the forests in the US?

A. was, on　　 　B. was, to　

C. has, on　 　D. has, to

7. The weather _____ to be colder and colder.

A. is seemed　 　　　　　B. was seemed　

C. seems　　　　 D. is seem like

6. Her husband _____ since 1998

A. has been dead　 　　　　B. has been died　

C. has died　　 　　　　　D. has dead

5. In the past 10 years, China ____ up many man-made satellites.

A. has been sent　 　B. has sent　 　C. was sent　　　　　 D. sent

4. Three quarters of the messages _____ by telegraph.

A. Was sent　 B. were sent 　　　　　C. Sent　　　　　 D. send

3. This pair of scissors ___ in China.

A. Make　　　 B. made　 C. is made　　　　　　 　D. are made

2. English is widely used. Many business letters around the world ___ in it.

Are written　　　 　　　　　B. were written　

C. Are writing 　　　　　　D. were writing

1. Three fourths of the information on the internet ___ in English.

A. Am　 B. is　 C. are　 D. be

20．The dirty clothes ___ by his mother now.

A. are washed　 B. are washing　 C. were washed　 　D. are being washed