1. He was a bit nervous, for he on before.

A. has never operated B. had never operated

C. has never been operated D. had never been operated

2. Attention never the matter.

A. has, paid for B. was, paid for C. has, paid to D. was, paid to

3. The suspension bridge(悬索桥) by the end of last month.

A. has been designed B. had been designed C. was designed D. would be designed

4. Sarah, hurry up. I'm afraid you can't have time to before my party.

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

5. According to an art dealer, the painting to go for at least a million dollars.

A. is expected B. expects C. expected D. is expecting

6. -The window is dirty.

-I know. It for weeks.

A. hasn't cleaned B. didn't clean C. wasn't cleaned D. hasn't been cleaned

7. The first use of atomic weapons （原子武器） was in 1945 and their power increased enormously ever since.

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

8. The number of deaths from heart disease will be reduced greatly if people to eat more fruit and vegetables.

A. persuade B. will persuade C. be persuaded D. are persuaded

9. The mayor of Beijing says that all construction work for the Beijing Olympics by 2006.

A. has been completed B. has completed C. will have been completed D. will have completed

10. More patients in hospital this year than last year.

A. treated B. have treated C. had been treated D. have been treated

11. All the employees except the manager to work online at home.

A. encourages B. encourage C. is encouraged D. are encouraged

12. The hero's story differently in the newspapers.

A. was reported B. was reporting C. reports D. reported