求助GWD-26

Q20

In 1981 children in the United States spent an average of slightly less than two and a half hours 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

此题B,D错哪里了？

The particular design of muscles and bones in the neck and limbs of the turtle allow that it can draw in its exposed parts such that an attacker can find nothing but hard shell to bite.

A.      allow that it can draw in its exposed parts such that

B.       allow it to draw in its exposed parts, and so

C.      allows for it to draw in its exposed parts and that

D.      allows that it can draw in its exposed parts, and so

E.       allows it to draw in its exposed parts, so that

此题我怎么觉得E对呢，为什么要选D? 谢谢

顶~！！ 

因为我也错了。。。

那还是谢谢你了