You ____ me up so early.I don't have to go to school today a
You ____ me up so early.I don't have to go to school today and I can sleep for more hours.
A.needn't wake B.needn't have woken
C.dont'need to wake D.didn't need to wake
说一下为什么在这里要选B 也就是说,为什么要用虚拟语气
不用难道不行吗?