问题描述：
两道英语单选题
1.We hadn't waited for long（）the bus pulled up at the bus stop.A.until B.since C.before D.once 2.Last night I could hardly fall asleep（）the noise outside so loud.A.as B.for C.with D.because of 希望不要只给出答案,希望能详细介绍下每个选项,如果够详细,会追加分的,
1.We hadn't waited for long（）the bus pulled up at the bus stop.A.until B.since C.before D.once 2.Last night I could hardly fall asleep（）the noise outside so loud.A.as B.for C.with D.because of 希望不要只给出答案,希望能详细介绍下每个选项,如果够详细,会追加分的,
问题解答：
我来补答展开全文阅读