问题
选择题
There are so many kinds of Mp3 in the shop. We can't decide . [ ]
A. what to buy
B. to buy what
C. which to buy
D. to buy which
答案
答案：C
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There are so many kinds of Mp3 in the shop. We can't decide . [ ]
A. what to buy
B. to buy what
C. which to buy
D. to buy which
答案：C