Must I go to a medical school and be a doctor like you ,Dad?
No,you _______ .You’re free to make your own decision .
| A．can’t | B．mustn’t |
| C．shouldn’t | D．needn’t |
We should tell hunters _______tigers.
| A．don’t kill | B．not kill |
| C．killing | D．not to kill |
We must hurry up. There are few minutes _______.
| A．left | B．leaving |
| C．to leave | D．leave |
They think wolves are dangerous ____ humans, so this leads ____ the danger of wolves.
| A．for; to | B．as; for |
| C．to; to | D．at; in |
The boy didn’t go to see the film with his parents yesterday the coming exam.
| A．if | B．because |
| C．because of | D．so |
--- Will it be sunny this afternoon?
--- It _______ fine. Who knows? The weather (天气) always changes quickly.
| A．must be | B．will be |
| C．may be | D．maybe |