Question

I had to buy        of these books because I didn’t know which one was the best.

A．both

B．none

C．neither

D．all

Answer 1

B

此题重点考查四个选择项的区别。either: 1.否定句中的“也”。 2.两者其中之一。neither：两者都不。特殊句式：neither…nor… both：两者都。特殊句式：both…and…
none:三者或三者以上都不。all：三者或三者以上都。