He ought to win the first prize, _____ he?
| A．oughtn’t | B．shouldn’t | C．mustn’t | D．both A and B |
My careless friend Bob received a ticket for speeding. He ____ have driven so fast.
| A．can’t | B．wouldn’t | C．mustn’t | D．shouldn’t |
The flu is believed ____by viruses that like to reproduce in the cells inside the human nose and throat.
| A．causing | B．being caused | C．to be caused | D．to have caused |
Seeing her father come back, _________.
| A．tears ran down her cheeks | B．Her tears ran out |
| C．she burst into tears | D．She burst into crying |
The old woman stood still with her eyes _________ the picture.
| A．fixing in | B．fixing on | C．fixed in | D．fixed upon |
I can’t remember _____ made the teacher give Mary the permission to leave the class earlier.
| A．that it was what | B．what it was that | C．what was it that | D．that was it what |