No one here believes the reason_____ he gave for his lateness

问题描述:

No one here believes the reason_____ he gave for his lateness
A、that B、why C、whice D、what
这道题为什么选择A 而不选择B呢?

这是定语从句,空格后面的句子是定前面the reason,对the reason 起解释说明的作用