12. I'm sorry, sir. Your recorder isn't ready yet. It _____ in the factory.

A. is being repaired　　　　　　 B. is repaired　　　

C. has been repaired 　　　　　 D. hasn't repaired

11. An exhibition of paintings ____ at the museum next week.

A. are to be held　　　 B. is to be held　　　　 C. are holding 　　　 D. will hold

10.　　 ---Look! Someone has broken the coffee cup!

　 ---Well, it ______ me

A. isn’t 　　　　 　B. wasn’t 　　　　 　　C. hasn’t been　　　　 　 D. hadn’t

9. - Bob, you’re absent - minded! 　 - Oh, I’m sorry I ________ attention to you, Miss Shute. 　　 A. haven’t paid　　　　　 B. wasn’t paying 　 　　 C. am not paying　　　　　　　　 D. couldn’t have paid

8. Hello! I　　　 　you　　　 　in Shanghai. How long have you been here?

A．don’t know, were　　　　　　　　　　　　　　　 B．haven’t known, are

C．didn’t know, were 　　　　　　　　　　　　　　 D．hadn’t known, are

7. He __________ for a moment before kicking the ball, otherwise he would have scored a ball．

A．had hesitated 　 　B． hesitated　　　 C．was hesitating　 　　　 D． hesitates

6．If the weather had been better, we could have had a picnic. But it　　 　all day.

A．rained　　　　　　　　 B．rains　　　　　　　　　 C．has rained　　　　　　　 D．is raining

5. Great changes _________ in my hometown, and a lot of factories ________.

A. have been taken place; are being set up　 B. have taken place; have been set up

C. are taken place; had been set up　　　　 D. took place; will be set up

4. - _____ for Beijing?

　 - Yes, and I’ll come back in two months.

A. Have you left　　　　　　 B. Are you leaving　 　C. Do you leave　　　　　　 D. Did you leave

3. The problems　　　 at the meeting tomorrow are really hard to solve．

A．discussed　　 B．to discuss　　　 C．to be discussed　　　　　　　 D．discussing