The man in prison insisted that he _______ nothing wrong and _______ set free.
| A．should do, should be | B．had done, should be |
| C．had done, had been | D．should do, had been |
How can the students carry on with the listening test with all that loud noise _________?
| A．going on | B．goes on | C．went on | D．to go on |
Our kitchen needs to be equipped with a special fan to _________ the smell of cooking.
| A．keep free | B．move off | C．get rid of | D．cut off |
.—Shall I begin the lecture?
－I’m afraid we have to wait for a while. John is coming with a microphone.
－_________.I can do without the microphone.
| A．I’m sorry | B．Excuse me | C．I beg your pardon | D．Never mind |
–What’s that noise?
--Oh, I forgot to tell you. The new machine __________.
| A．was tested | B．will be tested | C．is being tested | D．has been tested |
--People should stop using their cars and start using public transport.
-- __________. The roads are too crowded as it is.
| A．All right | B．Exactly | C．Go ahead | D．Fine |