They______ all their money, so they have to walk home.
It was a pity that the great writer died ________his works unfinished.
The person ________drugs had much difficulty in getting rid of the________.
-There is ________on smoking in this theatre. -Do you mean smoking ________in this theatre?
-I think smoking in public places is very bad. -________.Smoking in public will make nonsmokers uncomfortable.
Shanghai is ________that we can hardly visit all the beautiful scenery in two or three days.