I (leave)when it began to rain Such a terrible m

问题描述:

I (leave)when it began to rain Such a terrible m
I (leave)when it began to rain
Such a terrible murder must (look into)by the police

left 因为后面的began to rain 是过去时,所以leave也要用过去时left 我是开始下雨的时候离开的be looked into这么严重的谋杀案应该让警察来调查是被动语态