The buses, _____ were already full, were surrounded by anxious people.
| A．all of them | B．all of which | C．they all | D．all which |
Cancer is proved to be second only _____ heart disease as a cause of death.
| A．of | B．to | C．with | D．from |
You______ her in her office last Friday; she's been out of town for two weeks.
| A．needn't have seen | B．must have seen | C．might have seen | D．can't have seen |
---How did you like the food cooked by Mrs Green?
---You could have had _______.
| A．better everything | B．anything best | C．something good | D．nothing better |
Before the child went to bed,the fater asked him to ________ all the toys he had taken out.
| A．put off | B．put up | C．put away | D．put out |
---It's very kind of you to see me off,Mr Johnson.
---______.It's the least we could do.
| A．That's true | B．Not at all | C．I don't think so | D．Don't say to |