Question

I hate those ________ don’t help others when they are in trouble.

A．who

B．which

C．what

D．where

Answer 1

A

考查定语从句。先行词those“那些人”，指人用who或whom引导定语从句。句意“我讨厌那些当别人有困难时，不去帮他们的人。”which指物，what不能用于定语从句，where指地点。故选A。