Someone called me up in the middle of the night ,but they hung up __I could answer the phone.

问题描述:

Someone called me up in the middle of the night ,but they hung up __I could answer the phone.
A.as B.before
B一定是正确的,这我知道,但如果用as在我接电话的时候他们挂了,好像也行,

不行.把动作分解,肯定是对方挂电话在先,你接电话在后,所以要用BEFORE.用AS的话只能说对方一边挂电话,你一边接电话,逻辑不通了.