GWD26-q20

kingsonosgnik · 发表于 2010-9-7 18:12:36

20. GWD26-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 sixhours 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 weekin 1997
E. chores, that figure growing to nearly six hours a week in1997

能解释一下a b c 吗？
答案选b

judydongxueni · 发表于 2010-9-7 21:21:26

这个题目要用过去完成式，cde不对

a的话没有b好

seyouji · 发表于 2010-9-7 21:33:27

A，C结构不完整；de因为换逗号以后，句子成分有点怪。

GWD26-q20

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