----Are you going to buy a camera?
-----Yes. But there are so many kinds that I can’t decide to buy.
A. what
B. which
C. how
D. where
网友回答
A. what
(答案→)B. which
C. how
D. where
解析：特殊疑问词后接动词不定式主要注意以下几点：第一，特殊疑问词为疑问代词后接to +及物动词或不及物动词+介词；第二特殊疑问词为疑问副词+to+不及物动词或及物动词+宾语。而本题中动词为buy为及物动词，后未接宾语，故选特殊疑问代词，故选A或C再根据意思是选择买哪一个，而不是买什么，故选答案为B