— Hey, man. You can’t cross the street now. you have to Wap版

试题详情及答案解析

— Hey, man. You can’t cross the street now. you have to wait ____ the traffic lights turn green.
— Oh, sorry and thank you.

A．when

B．after

C．while

D．until

答案：D

试题分析：句意：--嘿，这位先生，你现在还不能过马路，你必须等红灯亮了才能走。--哦，对不起，谢谢你提醒我。A 当；B 在…之后；C 当…时；D 直到..才；故选D
考点：考查动词的用法。