—Hey, man. You can’t cross the street now. You have to wait the traffic turn green.—Oh, s

—Hey, man. You can’t cross the street now. You have to wait the traffic turn green.
—Oh, sorry and thank you.
A. when
B. after
C. until
D. while

A. whenB. after(答案→)C. untilD. while解析：A项在……的时候；B项在……之后；C项到……为止，在……以前；D项当……的时候。句意“嘿，伙计。现在你不能穿过街道。在交通灯变绿以前，你必须等。C项符合题意。

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