Cars, buses and bikes stop when the traffic lights turn red.A. canB. mayC. mustD. need

发布时间：2020-08-17 06:24:19

Cars, buses and bikes      stop when the traffic lights turn red.
A. can
B. may
C. must
D. need

网友回答

A. can
B. may
(答案→)C. must
D. need
解析：考查情态动词：A. can 能够， B. may可以，C. must必须，D. need需要，句意：当交通灯变红的时候汽车，公共汽车和自行车必须停止。选C。
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