Working there is ________unforgettable experience because I gained a lot of _______.
| A．a; experience | B．an; experience | C．/; experiences | D．/; experience |
No wonder you caught a cold. You________have gone out last night without a coat.
| A．shouldn’t | B．mustn’t |
| C．couldn’t | D．mightn’t |
His advertisement income this year is about $36 million, over three times________of last year.
| A．that | B．what | C．those | D．ones |
I suppose by the time I come back in ten years' time all these old houses_______down.
| A．will be pulling | B．will have been pulled |
| C．will have pulled | D．will be pulled |
I'm afraid I've little time to spare these days. I've a pile of papers to_____before the meeting.
| A．get through | B．put on | C．set up | D．send for |
Play, often seen as________activity for kids, is still important in______development of teenagers.
| A．the; the | B．an; the | C．an; 不填 | D．the; 不填 |