Question

【题目】—Time is up. I have to go now.
—Oh, it's raining heavily outside. You'd better wait here ______ it stops.
A.until
B.while
C.since

Answer 1

【答案】A
【解析】句意：－时间到了，我现在必须走了。－哦，外面在下大雨。你最好在这儿等到雨停。A. until直到；B. while当……时；C. since自从。句子表达的是“在这儿等到雨停”，直到，until。故选A。