The old couple have married for 40 years and never once _______ with each other.
----How long are you staying?----I don’t know. ____
There is no doubt ______ he will not be admitted to the room.
---I know you _____ for Shanghai. When shall I come to pick you up? ---The train _____ at 9:30, so you’d better come here at 8:30.
I don’t know _____ he will be back home.
He still lives in the room _____ there is a beautiful table.