GWD-26-Q20

In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they had spent nearly six hours a week.

A.   chores; by 1997 they had spent nearly six hours a week

B.   chores; by 1997 that figure had grown to nearly six hours a week

C.   chores, whereas nearly six hours a week were spent in 1997

D.   chores, compared with a figure of nearly six hours a week in 1997

E.   chores, that figure growing to nearly six hours a week in 1997

答案是B, 一个解析说A中的they不能指代children, 哪位好心人跟我说下为什么呢,

还有哪种情况下they是可以取代的前面提到的?

有牛人帮忙回答这个问题吗？ 我也不太明白这个。还有我觉得D也很对啊。

108.      (30099-!-item-!-188;#058&004651)

In the United States, while the number of foreign-born residents and their children is higher than ever, the percentage of the population they represent is not; in 1910 this group made up 35 percent of the population when compared to 20 percent in 2000.

(A) population when compared to 20 percent in 2000

(B) population as compared to 2000, when it was 20 percent

(C) population, comparing it with 20 percent in 2000

(D) population, unlike 2000, with 20 percent

(E) population, compared with 20 percent in 2000

Answer: E

这道题不是和lz提到的题目的性质一样吗？？？ thanks

ummm...我觉得性质不一样耶。。。这道108题就是考compared怎么用啊，lz说的那道不是的。。。

我也不明白第一道A为什么不可以，请NN作答~~

难道是因为A里面用了spend，所以就要把后面的doing so补出来么？？

用GOOGLE搜索到的一个帖子，解答的很细。

http://www.manhattangmat.com/forums/in-1981-children-in-the-united-states-t4406.html