问题
选择题
Wow! There are so many books. I really can't decide ____. [ ]
A. where to buy
B. which to buy
C. what to buy
D. how to buy
答案
答案：B
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Wow! There are so many books. I really can't decide ____. [ ]
A. where to buy
B. which to buy
C. what to buy
D. how to buy
答案：B