问题
选择题
The traditional view is ________ we sleep because our brain is “programmed” to make us do so.
A．when
B．why
C．whether
D．that
答案
答案：D
D [that此处引导表语从句，不具有任何意义，但是不能省略。]
搜题请搜索小程序“爱下问搜题”
The traditional view is ________ we sleep because our brain is “programmed” to make us do so.
A．when
B．why
C．whether
D．that
答案：D
D [that此处引导表语从句，不具有任何意义，但是不能省略。]