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()11.—Dadmustwewaituntilthelightbecomesgreen?-—YesTmafraidwe.That'sthetrafficrule.A.canB.mayC.havetoD.need

题目详情

() 11. —Dad must we wait until the light becomes green?

-—Yes Tm afraid we . That's the traffic rule.

   A. can   B. may   C. have to   D. need

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答案和解析

 C