22.　 You _______ earlier. The bus left a moment ago.

A. would come　　　　　 　　　　　　　 B. should have come

C. may come　　　　　　 　　　　　　　 D. have come

21.　 Should it rain, the crops ______ .　　

A. would be saved　　　　 　　　　　　　　　　 B. would have been saved

C. will be saved　　　　　　 　　　　　　 D. had been saved

20.　 _______, he would have passed the exam.

A. If he were to study　　　 　　　　　　　　　　 B. If he studied hard

C. Had he studied hard　　 　　　　　　　 D. Should he study hard　　　　　

19.　 _______ your letter, I would have written back two days ago.

A. If I received　　　　　　 　　　　　 B. Should I receive

C. Had I received　　　　　 　　　　　　 D. If I could have received

18.　 _______ to do the work, I should do it some other way.

A. If were I 　　　B. I were　 　　　 C. Were I　 　　　　　　　　　　　　　 D. Was I

17.　 _______ I be free tomorrow, I could go with you.

A. Could　　 　　B. Should　　 　　 C. Might　 　　　　　　　　　　 D. Must

16.　 He treated me as though ____ his own son.

A. I am　　　　　　　　 B. I would be　　　　 C. I was 　　　　　　　　　　　　　　 D. I were

15.　 ____ today, he would get there by Friday.

A. Would he leave　 B. Was he leaving　 C. Were he to leave　　　　　　　　　　 D. If he leave

14.　 Had you listened to the doctor, you ____ all right now.

A. are　　　　　　　　　 B. were　　　　　 　　　 C. would be　　　　　　　　　　　　 D. would have been

13.　 -I stayed at hotel while in NY.

-Oh, did you? You____ with Barbara.

A. would stay　　　　 B. could stay　　　　　 C. could have stayed　　　　　　 D. must have stayed