So many kinds of sweets! I really can’t decide .A. what to buyB. which to buy C. to buy wh

问题补充：

So many kinds of sweets! I really can’t decide .

A. what to buy

B. which to buy

C. to buy which

D. to buy what

答案：

A. what to buy

B. which to buy

C. to buy which

D. to buy what

解析：句意：有许多种类的糖果！我真的不能决定买哪一种。疑问词可以放在动词不定式标记to之前，和动词不定式一起构成动词不定式短语。结合上句可知该选B。