————,leave the room last ought to make sure that windows are closed and the soor looded
问题描述：
————,leave the room last ought to make sure that windows are closed and the soor looded
a whoever b who cwho will d those who帮我分析一下答案和考点
答
答案选D
Those (who leave the room last) ought to make sure that windows are closed and the soor looded.
注意括号内的是从句,是一个以who为引导词的主语从句