11. Thank you for the trouble me with the work.

A. having; helping B. taking; helping

C. taking; to help D. having; to help

选C。take the trouble to do意思是“不辞辛苦地做”。

12. You may depend it won’t happen again.

A. that B. on that

C. on it that D. on it

选C。depend on 意思是“依靠”，it形式宾语指代后面的that 从句。

13. The picture of the park memories of our class’s trip last year, when Mr. Smith began to take charge of our class.

A. called up B. reminded

C. turned up D. came up

选A。call up 唤起对……的回忆;remind的用法是remind sb. of sth.。

14. I suggest that that we should take part in more such activities in future we did yesterday.

A. which B. as C. that D. than

选B。当先行词被such修饰时，关系代词用as。

15. He is_____as a leader but he hasn’t _____in teaching.

A. success; many experiences

B. a success; much experience

C. great success; an experience

D. a great success; a lot of experiences

选B。抽象名词具体化，表示具有某种特征的人或事物，可用作可数名词。如：She is a success in business but a failure in marriage (她在事业上是个成功者，但在婚姻上是个失败者);experience作为“经验”解，为不可数名词。

16.When he realized the police had seen him, the man_____the exit as quickly as possible.

A. made up B. made for

C. made out D. made off

选B。make for…表示“向某地走去”;make off 后常接介词，表示“从……跑掉”;make out 有“看出;理解;开(收据等);进展;装出”等含义;make up有“编造;和解;弥补;化装;构成”等含义。

17. —What should we pay more attention to if we go north in winter, Mum?

—Nothing much. Take warm clothes _____the weather is cold.

A. as long as B. now that

C. if D. in case

选D。本题主要考查连接词的意义及对句子间的意义、关系的理解。as long as 意思是“只要”，表示条件;now that 意思是“既然;由于”，表示原因;if意思是“如果”，表示条件;in care意思是“以防，万一;免得”，表示条件。根据句子间的意义及关系可知本题的正确答案选D。

18. In the power plant more than_____of the workers are out_____strike.

选A。twelve 的序数词形式为twelfth;分数表达法中的分子大于1时，分母用复数，on strike = 在罢工。

19. I remember_____the factory owed a small workshop and two machines.

A. when B. how C. whether D. what

选A。该题考查when引导的宾语从句。句意为“我记得曾经这个工厂只有一个小车间和两台机器”，只有when指时间。

20. —I would like to buy an expensive camera.

—Well, we have several models_____ .

A. to choose from B. to choose

C. to be chosen D. for choice

选A。B、C有较大干扰性。根据上文“buy an expensive camera”，可以得知服务员在此让“我”从several models 中选一款。to choose from在此意为to choose one from several models。本句中to choose from 似乎没有逻辑主句，然而本句相当于We have several models for you to choose from。