问题
选择题
Someone called me up in the middle of the night, but they hang up ____ I could answer the phone.
A．since
B．after
C．until
D．before
答案
答案：D
题目分析：考查时间状语从句。有人半夜把我叫醒，但是，我还没来得及接听，他们就挂断了电话。故选D。A自从；B在......之后；C直到；D在......之前，没来得及......，常与情态动词连用。故选D。