问题
选择题
The roof fell ________ he had time to dash into the house to save his baby.
A．as
B．after
C．until
D．before
答案
答案：D
本题考查before引导的时间状语从句，意为“在……之前”。句意为“他来不及冲进去救他的孩子，屋顶就塌了”。
搜题请搜索小程序“爱下问搜题”
The roof fell ________ he had time to dash into the house to save his baby.
A．as
B．after
C．until
D．before
答案：D
本题考查before引导的时间状语从句，意为“在……之前”。句意为“他来不及冲进去救他的孩子，屋顶就塌了”。