问题
选择题
There are so many kinds of MP4 players in the shop. I can't decide ________. [ ]
A. what to buy
B. which to buy
C. when to buy
答案
答案：B
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There are so many kinds of MP4 players in the shop. I can't decide ________. [ ]
A. what to buy
B. which to buy
C. when to buy
答案：B