8．As the intelligence of robots increases to match ________ of humans，we may use them to expand our frontiers．（　　）

A．

it

B．

that

C．

which

D．

them

7．The average Facebook user in the United States has 245friends，according to a study ______ in February．（　　）

A．

publishing

B．

published

C．

publish

D．

to publish

6．_______ hard for many years，Li Na harvested the rewards of her efforts．（　　）

A．

To work

B．

Working

C．

Worked

D．

Having worked

5．Our teacher is so kind that if he corrects someone，he will do it with so much humor as if he were the one_____at that time．（　　）

	A．	being corrected		B．	correcting
	C．	having corrected		D．	to correct

4．假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文．文中共有10处语言错误，每句中最多有两处．每处错误仅涉及一个单词的增加、删除或修改．
增加：在缺词处加一个漏字符号（/\），并在其下面写出该加的词．
删除：把多余的词用斜线（\）划掉．
修改：在错的词下划一横线，并在该词下面写出修改后的词．
注意：1．每处错误及其修改均仅限一词；
  2．只允许修改10处，多者（从第十一处起）不计分．
In the winter vacation，I paid a visit a mountain village in a suburb of Handan．No sooner had I got off the bus when I was greatly surprising to see all the changes．It was far better than I had been expected．Now every family can drink cleanly running water．The villagers needn't carry water himself any more．Firewood is no longer used for cooking．Marsh gas，a new cheap clean energy，make it very convenient to cook and light．As all the families have color TV set，they can enjoy plays at home．It impressed me most was that the best building in a village was the school．I hope the mountain village will become better and better．

3．Little        that the course of his life was about to change then．（　　）

A．

he is known

B．

did he know

C．

does he know

D．

is he known

2．What do you mean，there are only ten tickets？There        be twelve．（　　）

A．

must

B．

can

C．

will

D．

should

1．Joe won the first prize on Sunday and，tears rolling down his cheeks，___it a turning point for him．（　　）

A．

called

B．

calling

C．

having called

D．

to call

20．I love the job of selling guitars．That's        my strengths meet my passions for music．（　　）

A．

what

B．

which

C．

where

D．

when

19．The calculations，had they been done by hand，_____all practical value by the time they were finished．（　　）

	A．	had lost		B．	would lose
	C．	should have lost		D．	would have lost