Question

【题目】—I must go to school.

—If you must，at least wait ________ the rain stops.

A. since B. as C. till D. when

Answer 1

【答案】C

【解析】句意：——我必须去上学。——如果你必须的话，至少等到雨停了再说。A. since 自从；B. as当……时候；C. till直到；D. when当……时候。根据句意“至少要等到雨停了。”直到… till/until，故答案为C。