单项选择题
A.help B.good C.use D.worth
I am sorry （） waiting for a long time.A.to keeping youB...
单项选择题I am sorry （） waiting for a long time.
A.to keeping you B.to kept you C.to have kept you D.kept you
By this time tomorrow, the ship （）its repair work in th...
单项选择题By this time tomorrow, the ship （）its repair work in the engine room.
A.will do B.has done C.had done D.will have done
I would have gone ashore with the second engineer, if I...
单项选择题I would have gone ashore with the second engineer, if I （） time.
A.have had B.had have C.had had D.would have had
