—Hurry up. The bus is coming.—Wait a minute. Don't cross the street _______ the traffic lights are green.

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1. —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

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2016年新目标英语中考复习：语法综合检测(二)