题干

—Jack, you look a little off colour.
—Well, I ____________ late to finish my report these days which is due this Friday.
A.was staying upB.have been staying up
C.had stayed upD.was to stay up
上一题 下一题 0.85难度 单项选择 更新时间:2019-05-07 01:41:34

答案(点此获取答案解析)