题目内容
The roof fell ________ he had time to dash into the house to save his baby.
| A.as | B.after | C.until | D.before |
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”。
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题目内容
| A.as | B.after | C.until | D.before |