—What do you think of working as a doctor?
—It 's a good job to help people keep_________.
A.busy B.strict C.healthy D.patient
—Mr. Smith, would you please speak a little more_______?
—Sorry! I thought you could follow me.
A.clearly B.politely
C.seriously D.slowly
Betty has a beautiful _________. She wants to be a singer in the future.
A.mouth B.voice C.noise D.sound
The world is changing with every second; and China, too, ________ with every second.
A.is changing B.had changed C.changed D.is changed
—Let’s plan a surprise party for our class. What’s your idea?
—Why not _________ a short play?
A.get on B.keep on C.have on D.put on
— Could you come back home at four this afternoon?
— ________.I’ll be at an important meeting at that time.
A.I think so B.It depends on traffic
C.Terribly sorry D.No problem