You stop when the traffic light turns red.A. canB. had betterC. needD. must

发布时间：2020-08-21 08:48:12

You      stop when the traffic light turns red. 
A. can
B. had better
C. need
D. must

网友回答

A. can
B. had better
C. need
(答案→)D. must
解析：must是“必须，不得不”，根据下文出现的when the traffic light turns red.可知是“你必须……”。
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