_)I had not believed in falling in love with somebody at first sightI met David on Valenti

发布时间：2020-08-17 14:41:40

_)I had not believed in falling in love with somebody at first sight    I met David on Valentine’s Day three years ago.
A. when
B. unless
C. if
D. before

网友回答

A. when
B. unless
C. if
(答案→)D. before
解析：考查连词。before引导时间状语从句。
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