She feels unhappy, _____?
| A．doesn’t she | B．does she |
| C．isn’t she | D．is she |
—Did you go to Tim’s birthday party?
—No, I _____.
A.am not invited B.wasn’t invited C.haven’t invited
Computers are very useful, they can _____ sending e-mails.
A.be used to B.be used with C.be used for
I _____ go to bed _____ my father came back.
A.won’t, until B.will, until C.didn’t, until
My uncle is leaving for Shanghai. I have to _____.
A. see him off B. take him off C. see off him
—My parents don’t allow me _____ computer games at school.
—That’s right. They are bad for your study.
A.play B. playingC.to play