He arrived at the station, ______that the bus_____ off .
、Luckily, we’d brought a road map without__________ we would have lost our way.
The old couple don’t live with their children; they _________ independence(独立)more than anything else in the world.
Many a student ______ made that mistake before, which is another way of saying a great many students ________ made that mistake.
Would you like something to drink?Oh, no, thank you. Please____________________.
No wonder you caught a cold. You _______________ out last night without a coat.I know how silly I was.