求GWD26-Q20

门萨来了

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 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, D错在什么地方了呢?

拒信飞来

首先，compared将就近修饰chores

其实，我觉得后三个的in 1997都有改变原句by 1997的意思

[此贴子已经被作者于2008-12-11 20:58:49编辑过]