19.This is the very toy car ________ which he came here the other day.

　A. by　 B. in　 C. for　 D. on

　选C。容易误选A或B。根据常识，我们知道他是不可能坐toy car到这儿来的。所以选C。用for表示来的目的。

18.---Spacecraft “Discovery” has failed in the course of launch.

　----_______? They have been preparing for the test.

　A. How come　 B. When　 C. How　 D. Why not

　选A。how come在这里的意思是“怎么回事？”，表示不解，惊讶。

17.I began to fish before memory began, _______ I know I have always fished.

　A. so far　 B. so as far as　 C. as far as　 D. so

　选B。本题中逗号前是一个主从复合句，后面也是主从复合句，因此其间需要一个并列连词，so 是并列连词，B，D两项中有so,如果选D，I know后面的部分成了宾语从句，不符合题意。而B项的so连接两个分句，as far as为I know的从属连接词，故B为正确答案。

16.______ I had done it I knew I had made a mistake.

　A. Hardly　 B. Directly　 C. Mostly　 D. Nearly

　选B。第一眼看四个词从形式上看都是以-ly结尾的形容词，但从句子结构看，空白处需要填连词。但不少学生受hardly…when…影响，可能很容易选A。其实，directly/immediately等少数副词具有连词的功能用来连接两个句子，意思是“一…….就…..”，相当于as soon as, the moment等用法。

15.Elbert Einstein, for ______ life had once been very hard, was successful later in science .

　A. whom　 B. whose　 C. which　 D. his

　选A。容易选B。原因是受思维定势的影响认为whose life是一个整体。定语从句的主语应该是life， 本句可以改写为: life had once been very hard for him, 所以在定语从句中介词for还缺少了一个宾语。所以选A。

14.In my opinion, all Mr Tom ______ good to his students in his class at present. He is very strict in their study.

　A. does does does　　 B. does do do

　C. does does do　　　 D. did do does

　选C。Mr Tom does为定语从句修饰all,后面的does do是谓语动词的强调形式。Do good to是“对…….有好处”的意思。

13.--- Can you attend tomorrow’s meeting?

　--- I am sorry, but I will have too much work ______.

　A. to see to to come　 B. seeing to come

　C. to see to coming　 D. doing to come

　选A。to see to与have too much work搭配，即：have too much work to see to (有太多的工作要处理)，其中see to(处理，照看)为不定式作定语，修饰work.不定式to come与much前的too搭配，构成too…to句型表示“太……而不能”的意思。

12.______ he told us is the news _______ China has got 32 gold medals in the 28th Olympic Games in Athens, _________, of course, made the nations feels very excited.

　A. What; which; which　 B. That; that; which

　C. What; that; which　　 D. That; that; what

　选C。第一空用what作told的宾语构成主语从句； 第二个空用that引导同位语从句，说明the news的具体内容；第三个空用which引导一个非限制性定语从句，先行词为前面整个句子所表达的内容。

11.I can hardly imagine so pretty girl like you ________ boxing.

　A. like　 B. to like　 C. liking　 D. to have liked

　选C。本句中的so pretty和like you都是用来修饰限定a girl的。本句可以简化为：I can imagine a girl liking boxing.即，考查imagine sb doing sth结构。

10.Personally I think it is the sales manager, rather than the sales girls, _______ to blame.

　A. is　 B. that is　 C. are　 D. who are

　选B。rather than与the sales girls形成比较结构，去掉rather than the sales girl旧可以看出宾语从句实际上是一个强调句，被强调的部分是宾语从句中的主语the sales manager，后面的rather than the sales girls也对句子谓语动词形式的选择形成了一定的干扰。考虑到主谓一致的原则，应该选B。