—Oh, It’s late, I must go now.
—It’s snowing outside. Don’t leave it stops.
A. when
B. after
C. while
D. until
网友回答
A. when
B. after
C. while
(答案→)D. until
解析：连词辨析。When当……时；after在……之后 ；while然而；until 直到。句意：哦，太晚了，我必须走了。——外面正下雪呢。等雪停了再走吧。固定结构not…until…意思是直到…才…故选D。