.
—I want to know if I______smoke here.
—No, you______ .Could you see the sign “NO SMOKING” there?
| A．can; needn’t | B．must; can’t | C．shall; won’t | D．may; mustn’t |
—What's the matter with John? He has been sitting there for hours.
—A postcard from his father ________ an attack of homesickness in him.
| A．took up | B．set off |
| C．brought in | D．built up |
Look before you leap! Why not ________ the advantages against the risks before you start?
| A．weigh | B．match |
| C．defend | D．fight |
It has been reported that some government leaders ________ their authority and position to get illegal profits for themselves.
| A．overlook | B．employ |
| C．abandon | D．abuse |
—I will have to think about it again.
—If you ________， you may lose the opportunity to compete altogether.
| A．hesitate | B．wonder |
| C．continue | D．fail |
Team leaders must ensure that all members ________ their natural desire to avoid the embarrassment associated with making mistakes.
| A．get over | B．look over | C．take over | D．come over |