_______— does the history lesson start?
—At nine o'clock. Let's go at once.
A. What B. When C. How
The little girl couldn’t be a student because of her __________.
| A．ill | B．sick |
| C．illness | D．sad |
__________ is really hard __ them to climb such a high mountain.
| A．This; to | B．It; to |
| C．This; for | D．It; for |
We must _______ to help the out of trouble.
| A．try our best | B．try your best |
| C．try | D．trying |
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 |
English isn’t as __________ as Chinese.
Maybe, perhaps it’s just because Chinese is your native language.
| A．easy | B．easily |
| C．easier | D．easiest |