1. The experiment is very expensive. But _         _succeed, we would be able to make production more efficient.

  A. should we     B. were we   C. if should we     D. if we

2. _         _to me, John would not have failed.

  A. If he has listened to me     B. Had he listened

  C. If he listened to me         D. Should he have listened

3. I didn't go to the party. But I do wish I _         _there.

  A. was     B. were     C. had been     D. went

4. I wished it _         _but it did.

  A. not occurred     B. did not occur    C. had not occurred    D. would not occur

5. I _         _ Professor Jones had taught me this equation.

  A. believe    B. deeply think    C. wish      D. suppose

6. The chairman requested that _         _.

  A. the members studied the problem more carefully

  B. the problem would be more carefully studied

  C. the members had studied the problem with more care

  D. the problem be studied with more care

7. The idea is that we _         _ an unmanned spacecraft to explore the planet first.

  A. will send     B. had sent    C. send      D. be sent

8.--" Shall I open the window?"

  --" I'd rather_         _"

  A. you had better not   B. you don't  C. you shouldn't    D. you didn't

9. If you hadn't taken such a long time to get dressed, we'd _         _there by now.

  A. get     B. be     C. have got at     D. have been

10.--" Do you want me to lend you some money?"

  --"I wish you_         _, I can pay you back next week."

  A. would     B. did     C. might     D. should