第1题: [单项选择]______, we decided to leave at once, as we didn't want to risk missing the bus. A. As it being pretty late B. It being pretty late C. It was being pretty late D. Being pretty late 参考答案:B 答案解析:此题考查非谓语动词的用法。本句为现在分词短语作原因状语,分词的主语和句于的主语不一致,因此B为正确答案。本句的意思是:“已经很晚了,我们决定立刻离开,因为我们不想误车。”