The roof fell the PLA men had time to rescue the child trapped in the house.A. untilB. un

发布时间：2020-08-16 14:04:08

The roof fell      the PLA men had time to rescue the child trapped in the house.
A. until
B. unless
C. before
D. because

网友回答

A. until
B. unless
(答案→)C. before
D. because
解析：fall 是短暂性动词，所以不能用until，此句意思应该是“解放军还没有救出被困在房子里的小孩，房顶就掉下来了。”所以答案C。
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