—I saw your mother at the hospital this morning . What’s the matter with her?
—Oh , _______.She is a doctor there.
| A．you’re right | B．it’s a pity |
| C．don’t worry | D．you’re welcome |
The heavy rain ______ the old man from going out for a walk. Which one is not right?
| A．prevented | B．stopped |
| C．dropped | D．kept |
The flood ____________ the villages and a lot of people lost their lives.
| A．threw away | B．took away |
| C．washed away | D．put away |
I know the ________of the bird because it's one of the________ birds in the world.
| A．importance; important |
| B．important; importance |
| C．importance; most important |
| D．important; important |
---How long did it ________you to solve the problem?
---I _______about half an hour on it.
| A．take; took | B．spend; took |
| C．spend; cost | D．take; spent |
---Could you come back home at three o’clock？
---_________. I will have a meeting at half past two and it will last two hours.
| A．Yes, I hope so. | B．I think so. |
| C．I’m afraid not. | D．I’m afraid so |