It is strange that such a thing ___ in your school.

A. will happen               B.  happens               C.  should happen         D.  happened

There was a traffic jam; otherwise I ____ here on time.

A. would be                   B. had been               C. should be                              D. would have been

It’s high time that something _________ to prohibit selling fake commodities.

A. must be done            B. was done                C. be done                     D. were done

It was urgent that he _________ her immediately.

A. calls                         B.called                     C.call                           D.would call

______ to give up, he would take my place.

A. If were I                  B. I were

C. Were I                     D. Was I

 If he ______ me tomorrow, I would let him know.

A. should call                B. should have called

C. were able to call　    D. are able to call

You didn’t let me drive. If we ______ in turn, you ______ so tired.

A. drove; didn’t get 

B. drove; wouldn’t get

C. were driving; wouldn’t get 

D. had driven; wouldn’t have got 

If it ______ another ten minutes, the game would have been called off.

A. had rained                 B. would have rained

If I ______ (do) the job, I would do it in a different way.

If I ______ (know) that you were coming, I would have met you at the airport.