Question

【题目】—Oh，it's 9 pm.I have to go now.But it's raining heavily outside.

—You'd better wait ________the rain stops.

A. after B. until

C. since D. while

Answer 1

【答案】B

【解析】句意：——哦，现在是晚上9点。现在我必须走了。但是外面正下着大雨。——你最好等到雨停了。after在……之后；until直到；since自从；while当……时候；此处表示一直等到雨停了，故用连词until，故选B。