摘要： prevents some people attaching importance to education. A. The importance of agriculture B. Heavy work on the farm C. Traditional ideas D. All the above
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I just don't understand_____________ that prevents so many Americans from being as happy as one might expect.
A. why it does B. what it does
C. what it is D. why it is
查看习题详情和答案>>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．why does it | B．what does it | C．what it is | D．why it is |
People have come to understand _____ prevents so many Americans from being as happy as one might expect.
A．that it is why B．what does it that C．why it does that D．what it is that
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