题目内容
【题目】—When can we go back to school?—_________ the virus is controlled. Safety comes first!
A.BeforeB.UntilC.Not untilD.Since
【答案】C
【解析】
句意:——我们什么时候能回学校?——直到病毒得到控制。安全第一!
考查连词辨析。Before在……之前,选项A表示“在病毒得到控制之前回学校”,这种说法错误;Until直到,动词是延续性的,go是短暂性动词,动作不能持续,故B错误;Not until直到……才,是固定搭配,此处表示“直到病毒得到控制才回学校”,故C正确;Since自从,后面接句子常用一般过去时,此处是一般现在时,故D错误。故选C。
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