171.If my lawyer ___here last Saturday, he ____me from going .

　　　 A. had been ; would have prevented　　 B. had been, would prevent

　　　 C. were; would prevent　　　　　　　 D. were; would have prevented　

170. If she had worked harder, she _____.

A.　 would succeed　　 B. had succeeded

C. should succeed　　 D. would have succeeded　　　　　　

168. He would have come back, but he ___a guest from America.

　　　 A. has　 B. had　 C. had had　 D. will have

[　 ]169 “ The experiment had failed” “ I suggested you ___again!”

　　　 A. try　 B. trying　 C. will try　 D. would try

167. He could have come here, but he ____too busy.

　　　 A. is　 B. was　 C. were　 D. would be

166. The meeting has begun, you _____here earlier.

　　　 A. could come　 B. ought have come　 C. should have come　 D. need come

165. You got up late, you ____the bus.

　　　 A. could have caught　 B. can catch　 C. would have caught　 D. could catch

164. It’s time you ____your lesson. Don’t play any more.

　　　 A. stop doing　 B. stop to do　 C. stopped doing　 D. stopped to do

163. It’s time that you ____hard.

　　　 A. study　 B. will study　 C. studied　 D. would study

162. If only I ____here for a long time.

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

159.If only I ____in a big city!

A. had been born　 B. was born　 C. were born　 D. would be born

[　 ]160 He looked as if he ____last year.

　　　 A. came　 B. had come　 C. comes　 D. should come　

[　 ]161He looks as if he ___tomorrow.

　　　 A. died　 B. would die　 C. will die　 D. should die