But for their help，we the program in time.
| A．can not finish | B．will not finish |
| C．had not finished | D．could not have finished |
Only in 1996 the determination and patience of the scientistswith a breakthrough at last .
| A．were ; paid off | B．did; pay back | C．did ; pay off | D．did ; pay for |
Mr Smith was madeheadmaster of our school bymajority of 300 votes.
| A．the ; a | B．the ; the | C． / ; a | D．a ; the |
—Would she mind playing against her former teammates?
— . She is willing to play against any tough players.
| A．I think so | B．I’m not surprised | C．Of course | D．Not likely |
--Where is your father?
--He to Australia on business.
| A．has been | B．went | C．has gone | D．will go |
—I’m sorry I don’t speak English very well.
—No, your English is good enough.
—__________.
| A．No, I don’t think s | B．Thank you |
| C．I’m very sorry to hear that | D．But yours is much better than mine |