Question

【题目】I had to buy _______ of the three books because I didn’t know which one was the best.

A.allB.eitherC.bothD.neither

Answer 1

【答案】A

【解析】

句意：我不得不把这三本书都买下来，因为我不知道哪一本是最好的。

考查代词，A. all全，都，（三者或三者以上）；B. either两者中另一个；C. both两者都；D. neither两者都不。根据“three”和“because I didn’t know which one was the best”可知，故选：A。