---Why isn't he in the hospital with his injured mother?
---No one ______ him of the accident.
| A．informed | B．informs | C．had informed | D．has informed |
——Why not stop for a break now?
—— _____ .We have been busy working all day and all of us are tired.
| A．I couldn’t agree more | B．That’s all right |
| C．We’d better not. | D．You’re really right. |
The workers demanded that their employer_____ their working conditions.
| A．had improved | B．would improve | C．improve | D．will improve |
——Oh, I need help, doctor. Things aren't going all that well.
——Like what？Can you be more _____ ？
| A．typical | B．specific | C．actual | D．rational |
_____ Ming Ming with his sister, I find Ming Ming prefers classical music to pop music.
| A．Compare | B．Compared | C．Comparing. | D．To compare |
——Guess what！I met an old school friend last week.
——How nice！How long____ each other？
| A．didn't you see | B．haven't you seen |
| C．hadn't you seen | D．don't you see |