The professor promises that she will have a computerfor you to usefor the whole year.
You ________ all those calculations! We have a computer to do that sort of thing.
A) needn’t have done
B) must not have done
C) shouldn’t have done
D) can not have clone
A.the computer system has been set up
B.the computer is already out of the box
C.appropriate software have been installed
D.appropriate cables are correctly connected
A.needn't have done
B.shouldn't have done
C.must not have done
D.can not have done
--- _____________________________
A.I have got the certificate.
B.I can use computer well.
C.Yes, I have worked as a sales man for one year.
Lisa: May I use your computer this afternoon?
Cathy: I'm sorry, but I have to finish typing this term paper today.
Lisa: __________.
A、Thank you just the same
B、Do as you please
C、It doesn't matter
D、Never mind
Speaker A: Where can we get the computer fixed?Speaker B: ______
A.Yes. I have no idea.
B.Why not ask John about it.
C.No. I believe there is one at the corner.
D.Why do you want it repaired?
A、needn't have done
B、shouldn't have done
C、must not have done
D、can not have done