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there is so much food in the supermarket.i don not know ____

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there is so much food in the supermarket.i don not know _____
A what to choose
B which to choose
C which one to choose
D whether to choose
两种,晕
再看看
还有
为什么不用WHAT
势均力敌,WHAT CAN I DO
A 题干为宾语从句.
B,C选项中的which是定语从句里的关系代词,也就是说不能引导宾语从句.
D选项whether后面只能跟一个含有主谓宾的句子,如:I don't know whether I should choose cabbage or cucumber.