[11] His invitation _____ useless by the scientists of that time.

　　A. considered being

　　B. was considered being

　　C. considered to be

　　D. was considered to be

　　[答案] D。 onsider sth. to be 结构。

　　[12] After living in Paris for fifty years he returned to the small town _____ he grew up as a child.

　　A. which

　　B. where

　　C. that

　　D. when

　　[答案] B。 定语从句，the small town在从句中充当地点状语。

　　[13] Nick is looking for another job because he feels that nothing he does _____ his loss.

　　A. serves

　　B. satisfies

　　C. promises

　　D. supports

　　[答案] B。 动词用法辨异。

　　[14] Don’t worry. I’ll do all I can _____ you _____ your maths.

　　A. help; with

　　B. to help; with

　　C. helping; in

　　D. to help; for

　　[答案] B。 do all one can to do sth. 尽力做什么;help sb. with sth.帮助某人做什么。

　　[15] Many people agree that ____ knowledge of English is a must in _____ international trade.

　　A. a; /

　　B. the; an

　　C. the; the

　　D. / ; the

　　[答案] A。 a knowledge of 对…的了解(掌握)。

　　[16] He won’t go to the party without _____ .

　　A. inviting

　　B. to be invited

　　C. invited

　　D. being invited

　　[答案] D。 without是介词。

　　[17] Jane’s pale face suggested that she _____ ill, and her parents suggested that she _____ a medical examjination.

　　A. be; should have

　　B. was; have

　　C. should; be

　　D. was; was

　　[答案] B。 suggest表示"建议"时，从句用虚拟语气;表示"显示，说明"时，从句不用虚拟语气。

　　[18] All the perparations for the task _____, and we’re ready to start.

　　A. completed

　　B. have completed

　　C. had been completed

　　D. have been completed

　　[答案] D。 从后一句中我们可以判断是现在时态。

　　[19] My old schoolamte has just arrived, but I didn’t know he _____ until yesterday.

　　A. will come

　　B. was coming

　　C. had coming

　　D. comes

　　[答案] B。 come用于进行时态，表示将要发生什么。

　　[20] The number of people invited _____ fifty, but a number of them _____ absent for different reasons.

　　A. were; was

　　B. was; was

　　C. was; were

　　D. were; were

　　[答案] C。 the number of 后面的谓语用单数;a number of后面的谓语用复数。