Question

【题目】Mother didn’t go to bed she finished making the birthday cake for Ann.

A.untilB.sinceC.because D.after

Answer 1

【答案】A

【解析】

句意：妈妈没睡觉直到为安做完生日蛋糕。

考查连词。until直到；since由于，自从；because 因为；after在……之后；根据not……until表示直到……才，结合句子Mother didn’t go to bed she finished making the birthday cake for Ann.妈妈没睡觉 为安做完生日蛋糕。所以此处是until，故选A。