---Dad,mustwewaituntilthelightbecomesgreen? ---Y... 国语站 题库 2.29W 大中小设置文字大小 问题详情: ---Dad, must we wait until the light becomes green? ---Yes, I’m afraid we ______. That’s the traffic rule. A. can B. may C. have to D. need【回答】C 知识点:情态动词题型:选择题 TAG标签:#