Young man ! Don’t __________.It’s bad for your health.

Excuse me, sir. Would you please the total cost of the trip?— All right, I will make it at once.

How much did the new watch your sister?—She 350 yuan for it.

Lucy doesn’t mind lending you her dictionary.—I think she doesn’t, but I ________do so. I’ve already borrowed one.

The terrible drought has captured worldwide attention. As responsible citizens, we must never ______ the terrible situation that our common home is faced with.