Question

_____of the two story books are very interesting, so I can’t decide which one to

_____of the two story books are very interesting, so I can’t decide which one to choose.
A. All
B. Any
C. Either
D. Both

Answer 1

答案D
不定代词的用法。句意：两本故事书都很有趣，因此我不能决定选哪一本。All指三者或三者以上都……；any指三者或三者以上中的任何一个；either指两者中的任何一个，作主语时，谓语动词要用单数；故选D。