-Hurry up! The bus is coming.-Wait a minute. Don’t cross the streetthe traffic lights are

问题补充：

-Hurry up! The bus is coming.

-Wait a minute. Don’t cross the streetthe 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：本题回答语的含义是直到交通灯是绿色的时候，你才可以穿过马路，not……until表示直到……才的意思，故本题选A。