You’d better get the problem solved as soon as possible it becomes out of control．A. whe

发布时间：2020-08-16 17:06:33

．You’d better get the problem solved as soon as possible      it bees out of control．
A. when
B. before
C. since
D. unless

网友回答

A. when
(答案→)B. before
C. since
D. unless
解析：考察连词.句意:你最好在它变得失控之前尽快解决这个问题.选B,在……之前。
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