Question

—All the volunteers were very tired, but            of them took a rest.
—They were busy looking for the missing people.

A．neither

B．all

C．both

D．none

Answer 1

D

试题分析：Both两者都； Neither表示两者都不；all所有都；none一个也没有。句意：所有的志愿者都很累了，但是他们中没有一个人休息一下。——他们正在忙着寻找失踪的人们。结合语境可知选D。
点评：不定代词的应用是初中英语考察的重点，熟记每个代词的用法，注意每个代词之间用法含义上的不同。解题时结合语境具体分析，选择正确答案。