题目内容
When I try to understand ________ that prevents so many Americans from being as happy as one might expect, it seems to me that there are two causes.
[ ]
A. what it is
B. what it does
C. why it does
D. why it is
答案:A
提示:
提示:
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强调 what,作宾语时主谓不倒装. |
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