The lock _ shut.

13. It is better the door than to leave it open. A: shut B: to shut C: to be shut D: shutting

The door ______. Better have it repaired. A: isn't shut B: hasn't been shut C: won't be shut D: won't shut

______ before you leave the lab. A: Make sure that the windows are shut B: To make sure that the windows are shut C: Making sure to shut the windows D: To be sure to shut the windows

______the windows before<br/>leaving. A: Shutting B: Shut C: To shut D: Shuts

_____windows before leaving. A: Shutting B: Shut C: To shut D: Do shutting

_____ the door please. It’s cold. A: Shut B: To shut C: Open D: To open

I stopped to listen, and my son seemed____himself____in the living room. A: to enjoy, to shut B: to be enjoying, shutting C: to be enjoying, shut D: to have enjoyed, having shut

Don’t keep your mouth _______ if you want to improve your spoken English. A: shutted B: shutting C: to shut D: shut

If A is success in life, then A equals x plus y plus z. ___ is x; y is play; and z is keeping your mouth shut.