——The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?
——____ my students have a try?
| A．Shall | B．Must | C．Will | D．May |
Shedown beside me and soon got into sleep.
| A．lied | B．laid | C．lay | D．lain |
Peter was so excitedhe received an invitation from his friend to visit Chongqing.
| A．where | B．that | C．when | D．why |
Itbe difficult to get a train ticket during traditional Chinese Spring Festival this year because there are many ticket windows.
| A．mustn't | B．ought to | C．needn't | D．can't |
—Do you mind if I open the window?
—. I feel a bit cold.
| A．Go ahead | B．Of course not, it's not allowed here. |
| C．I'd rather you didn't | D．Why not? |
He is going to build a team that has a lot of potential and he thinks that isexcites him.
| A．that | B．which | C．what | D．as |