It ________be the postman at the door.It's only six o'clock.
| A．mustn't | B．can't |
| C．won't | D．needn't |
Last weekend, the football match was very ____________.It was really a delight to watch.
| A．depressing | B．breathtaking | C．awkward | D．gloomy |
When we were young, we would like to go to the circus to watch __________ pulling rabbits out of hats.
| A．executive | B．foreman | C．stevedore | D．conjuror |
My car __________ on the way to work.
| A．broke up | B．broke out | C．broke down | D．broke in |
Edison continued his experiment __________ all kinds of difficulties.
| A．instead of | B．in place of | C．in case of | D．in spite of |
The moment I picked up the receiver, I __________ the voice of Helen Bates.
| A．noticed | B．realized | C．recognized | D．observed |