He didn't realize he had forgot his bag the plane had taken off. A. unless B. until C. if

发布时间：2020-08-15 02:13:35

He didn't realize he had forgot his bag      the plane had taken off.
A. unless
B. until
C. if
D. or

网友回答

A. unless
B. until
C. if
D. or
解析：考查连词辨析。此处为直到---才---的意思，故选B符合。
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