题干

—So you saw the accident with your own eyes?
—Yes.I ________ for the bus across the street.
A.had been waitingB.have been waiting
C.was waitingD.would wait
上一题 下一题 0.85难度 单项选择 更新时间:2019-01-10 07:40:22

答案(点此获取答案解析)