Question

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

A．after	B．until
C．while	D．since

Answer 1

B

本题考察时间状语从句的连接词。根据句子含义可以看出选择固定用法not…until 直到…才…。
【翻译】快点，公交车来了。等一下，等交通灯变绿了再过马路。