C. will haveD. had had

　　17.

　　 (1) I would appreciate it_______you call back this afternoon for the doctor's appointment.

　　 (2) He left a message_______you should call back this afternoon for the doctor's appointment.

　　A. if B. until

　　C. whenD. that

　　18.

　　 (1)_______made the school proud was_______more than 90% of the students had been admitted to key universities.

　　 (2)_______more than 90% of the students have been admitted to key universities is_______the school takes pride in.

　　 A. What; becauseB. What; that

　　C. That; what D. That; because

　　19.

　　 (1) Is this the reason_______at the meeting for his carelessness in his work?

　　 (2) Is this_______at the meeting for his carelessness in his work?

　　A. he explained

　　B. what he explained

　　C. how he explained

　　D. why he explained

　　20.

　　 (1)-My English-Chinese dictionary has disappeared.

　　 -You_______have put it in your school bag.

　　 (2) How_______you say that you really understand the whole story if you have only part of the article?

　　A. should B. must

　　C. can D. would

答案

　　1. (1)D。 if引导宾语从句。(2)B。if引导的条件状语从句使用一般现在时表将来。

　　2. (1)C。-ing分词作状语,compare与主句中的主语在逻辑上呈主谓关系。(2) A。compare与主句中