—Hurry up! The bus is coming. —Wait a minute. Don’t cross the street the traffic lights a

问题补充：

—Hurry up! The bus is coming.

—Wait a minute. Don’t cross the street the traffic lights are green.

A. until

B. after

C. while

D. since

答案：

(答案→)A. until

B. after

C. while

D. since

解析：not...until…是“直到...才”表示直到某一时间,某一行为才发生,而在之前该行为并没有发生。根据句意应是“不要过马路直到交通灯是绿色的”，故选A.