You should inspect the wheels regularly, and replace them they cause you trouble.A. while

发布时间：2020-08-17 03:20:23

You should inspect the wheels regularly, and replace them      they cause you trouble.
A. while
B. as
C. before
D. until

网友回答

A. while
B. as
(答案→)C. before
D. until
解析：考查连词辨析。A当…时；然而；B随着；C在…之前；D直到…才；句意：你应该在出事之前经常检查车轮并及时更换。故C正确。
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