— They are said to have been familiar with each other.
— But they_________. They were introduced only hours ago.
| A．may not have been | B．couldn’t have been |
| C．mustn’t have been | D．needn’t have been |
Susan is ____ to come and see me this Sunday evening.
| A．possible | B．likely | C．impossible | D．scarcely |
—What do you think is_________ to happen to me tomorrow?
—Sorry,I don’t know.
| A．possible | B．likely | C．able | D．about |
What do you think is the most _____ time to find him at home?
| A．likely | B．probably | C．possibly | D．correctly |
He_____ some German while he was away on a business trip in Berlin.
| A．picked out | B．picked up | C．gave up | D．gave out |
I can _____ BBC English programmes clearly on my radio.
| A．picked up | B．pick up | C．picks up | D．picking up |