my brother won't go to bed until mymother comes back.won't为什么不用doesn't

问题描述:

my brother won't go to bed until mymother comes back.won't为什么不用doesn't

这是典型的时间状语从句,因为这个句子是以现在时为基调的.所以有一个口诀叫做“主将从现”,也就是这一类型的从句,主句要用将来时,从句用现在时