There are so many goods in the supermarket that people will often wonder _____.

问题描述:

There are so many goods in the supermarket that people will often wonder _____.
A.what do they buy B.which to buy C.what they buy D.what to buy

D
宾语从句,跟陈述语序所以A错,C句子意思不符合
B 是表示有范围的选择,但是这里是没有范围的所以选D
人们经常会不知道要买什么