--- May we leave the classroom now?
--- No, you ____________ . You ____________ to leave before the bell rings.
| A．mustn’t, are allowed | B．don’t have to, are allowed |
| C．needn’t, aren’t allowed | D．can’t, aren’t allowed |
He found _________ to sleep.
| A．difficult to get | B．it difficult getting |
| C．it difficult to get | D．that difficult to get |
Lei Feng is my hero. We should learn from him and think less of____ than others.
| A．us | B．ourselves | C．our | D．ours |
My mother is ill. I ______ stay at home to take care of her.
| A． can | B．may | C．have to | D．maybe |
--- Don’t be late next time.
--- ______________.
| A．Sorry, I won’t | B．Sorry, I don’t. |
| C．All right, I won’t | D．OK, I won’t |
Nanjing isn’t so large____ Shanghai. But it's the second____ city in East China.
| A．like; largest | B．as; largest |
| C．like; larger | D．as; larger |