题目内容

There is no difference between the two words. I really don't know __________.

[  ]

A. what to choose

B. which to choose

C. to choose which

D. to choose what

答案:B
提示:

区别.首先应当排除C和D,因为疑问词what和which放在了动词不定式之后;根据题意,应该是在“这两个单词”中来选择,有范围限制,故应选B,而不能选A.


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