12．Give them a hand this time and I am sure they will offer theirs______ in the future.

A. by turns　　　　　　　 B. in turn　　　　 C. at turn　　　　　 D. in return

11. He lost his job. So he _____finding one quickly.

A. has been considering　　 B. considered　　 C. has considered　　 D. would consider to

10. The first use of atomic weapons was in 1945, and their power ____ increased ever since.

A. is　　　　 　　B. was　　　　　　　　 C. has been　　　　 D. had been

9. Sarah, hurry up, I’m afraid you won’t have time to ____ before the party.

A. get changed　　 B. get change　　　　　 C. get changing　　 D. get to change

8. The train____ leave at 5:00 p.m., we can’t be late for it.

A. is to　　　　　　 B. will　　　　　　　 C. must　　　　　 D. need

7. When he came back, his wife was found ____.

A. dying　　　　　 B. deadly　　　　　　　 C. died　　　　　 D. death

6. ---- I’m sorry I stepped outside for a smoke. I was very tired.

　 ---- There is no _____ for this while you are on duty.

A. reason　　　　 B. excuse　　　　　　　 C. cause　　　　　 D. explanation

5. The man had to be put in prison for he was ____ to the neighbors.

A. dangers　 　　　B. a danger　　　　　　 C. danger　　　　　 D. in danger

4. What’s the way you think of ____ your handwriting?

A. to improve　　 B. improving　　　　　 C. how to improve　 D. for you improve

3. So far, he____ as many as 1 000 stamps of the USA.

A. has collected　 B. has been collecting 　　C. collected　　　　 D. had collected