16. I wonder why Jenny　 _______us recently. We should have heard from her by now.

A. hasn't written　　 B. doesn't write　　　 C. won't write　　 D. hadn't written

[解析]　 时间状语recently常与现在完成时连用。We should have heard from her by now.的意思是“目前我们应该收到她的信了。”一些考生把should have heard from her理解成“本来不该收到她的信而收到了”，发生了错误。should在这里用于表示可能性、估计、猜测或推论，如：They should have arrived at the station now.他们现在该抵达车站了。答案为A。　

15.

- You haven't said a word about my new coat, Brenda. Do you like it?　

- I'm sorry I　 _______ anything about it sooner. I certainly think it's pretty on you.

A. wasn't saying　　　　 B. don't say　　　　 C. won't say　　　　 D. didn't say

[解析]　 由于在问句中既使用了现在完成时，又使用了一般现在时，使一些考生产生了误解。现在完成时表示过去发生的事对现在造成的影响，过去对新大衣没做任何评价，造成的影响是对方不知道究竟对新大衣是什么看法，所以要用一般过去时didn't say。sooner表示“快，早”，不表示“将来”，所以不能选won't say。答案为D。

14.

When and where to go for the on?salary holiday_________ yet.

A. are not decided　　　 　　　　　　B. have not been decided

C. is not being decided　　　 　　　　D. has not been decided

[解析]　 根据副词yet可确定用现在完成时，可排除A、C；不定式，动名词及从句作主语，谓语动词按单数处理，when and where to do sth.表示单数，要用has not been decided。答案为D。

13.

By the end of last year,another new gymnasium_________ in Beijing.

A. would be completed　　　 　　　　B. was being completed

C. has been completed　　　 　　　　D. had been completed

[解析]　 如：by意为“到……为止”。by后加过去时间，主句用过去完成时，如by后加现在时间，用现在完成时，如by后加将来时，主句要用将来完成时。by the end of last year常与过去完成时连用。表示到过去某个时候前已完成的动作。答案为D。

12.

The silence of the library __________only by the sound of pages being turned over.

A. has been broken　　 B. breaks　　　　 C. broke　　　　 D. was broken

[解析]　 从题意可看出图书馆的安静是由翻书声被打破的，要用被动，排除B、C，再从“being turned over”看出不必用完成时，排除A。答案为D。

11.)

With the rapid growth of population, the city ________in all directions in the past five years.

A. spreads　　　　 B. as spread　　　　 C. spread　　　 D. had spread

[解析]根据时间状语“in the past five years”可以知道这个动作发生在以现在为立足点的时间轴的过去，且这个动作对现在有影响可判断为现在完成时。答案为B。

10.

-How long　 ________at this job?

- Since 1990.

A. were you employed　　　 　　B. have you been employed

C. had you been employed　　　 D. will you be employed

[解析]　 since后可加过去时间，也可加从句，从句中要用一般过去式，而主句要用现在完成式。根据Since 1990可确定为现在完成时。答案为B。

9.)

-When will you come to see me, Dad?

-I will go to see you when you　 ________ the training course.

A. will have finished　　　 B. will finish　　 C. are finishing　　 D. finish

[解析]　 考查从句中的时态。英语中状语从句通常用一般现在时或现在完成时表示一般将来时。同理，用一般过去时或过去完成时表示过去将来，其它如主、定等从句不受限制。在when引导的时间状语从句中谓语动词要用一般现在时。答案为D。　

8.

I thought Jim would say something about his school report,but he _________it .

A. doesn't mention　　　 　　　　B. hadn't mentioned

C. didn't mention　　　　　　　 D. hasn't mentioned

[解析]　 根据作者的语气判断，这里描述的是一种过去发生的情况，应该用过去时态，并未强调对过去或现在造成什么影响，因此用一般过去时态。答案为C。

7.

It is believed that if a book is _________it will surely_________ the reader.

A. interested...interest　　　 　　　　　B. interesting...be interested

C. interested...be interesting　　　 　　　D. interesting...interest

[解析]　 interesting与interested都是形容词，但interesting主语是物，一般说sth interesting,interested主语是人，一般说be interested in sth.故此题应为teresting，interest是动词形式，意为“吸引，使感兴趣”。答案为D。