what \that

来源：百度知道 编辑：UC知道 时间：2024/06/09 07:03:24
That day, my wife drove downtown to do Christmas shopping at ________ i thought was a dangerous speed.
A that b which c as d what

选what，能否浅显的解释一下句法结构

你要看一下， 这个成分在从句中充当的是主语， waht i thought is that the speed is dangerous,如果用that , 从句中就变成i作主语了，这样就不能和at搭了

what 指代后面的 i thought was a dangerous speed.

WHAT 指代SPEED的数值
这是名词性定语从句