题目内容
I.单项填空
() 1. [2015 • 成都]Cars,buses,bikes and people stop when the traffic lights are red.
A. can B. may C. must
1. C
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题目内容
I.单项填空
() 1. [2015 • 成都]Cars,buses,bikes and people stop when the traffic lights are red.
A. can B. may C. must