You ____be tired—you have worked only for ten minutes．
| A．won't | B．mustn't | C．needn't | D．can't |
_____ to get a ticket for the concert, George has been standing in a queue for two hours.
| A．Determining | B．To be determined |
| C．Determined | D．To determine |
— I’m terribly sorry to have put you to so much trouble.
— _____. You didn’t mean to, did you?
| A．Forget it | B．I’m afraid not |
| C．All right | D．You are welcome |
She devoted herself entirely _____ helping the children who suffered a lot in the earthquake.
| A．in | B．for |
| C．to | D．with |
—Turn the TV down, will you?
— _______
—I asked you to turn the TV down.
| A． pardon ? | B．Why? |
| C． I’m sorry | D．No problem |
______ the clothes factory is small, its products are of very good quality.
| A．If | B．Unless |
| C． When | D．Though |