If better use is _______ your free time, you’ll make greater progress in that.

Since she is a doctor,she must　　the patients.

The fact that so many people still smoke in public place ___that we may need nationwide campaign to raise awareness of the risks of smoking.

You look well.The air and the sea foods in Sanya must ________ you, I suppose.

Don’t eat the food that has gone bad, otherwise you will _______.