单项填空：- Dad,must we wait until the light becomes green?- yes,i'm afraid we ( ).

分类: 作业答案 • 2021-12-31 12:54:37

问题描述：

单项填空：- 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

答

C 表示必须等到红灯变绿 have to不得不