13．---Don’t forget to take your cell phone.
---But it’s just been announced that no students__________bring cell phones to school.
| A．shall | B．may | C．can | D．Will |
The medicine is supposed to cure this disease, but I’m not sure it.
| A．does | B．was | C．has | D．is |
----No one is so ____ about his joy as Doctor Li.
----You are right. He devotes all his time and energies to his cause.
| A．mad | B．wild | C．serious | D．crazy |
Hundreds of _____ of science fiction are published each year in our country.
| A．styles | B．titles | C．subjects | D．topics |
----Are you sure that he is able to do the work well?
---- _______ he could give his mind to it.
| A．In case | B．If only | C．On condition that | D．Unless |
It’s said that there are plenty of hotels in that town. There be any difficulty for you to find somewhere to stay .
| A．wouldn’t | B．mustn’t | C．shouldn’t | D．needn’t |