It has been announced that all the candidates______ remain in their seats until

It has been announced that all the candidates______ remain in their seats until

题型:不详难度:来源:
It has been announced that all the candidates______ remain in their seats until all the papers have been collected.
A.canB.willC.shallD.should

答案
C
解析
考查情态动词。 shall 用在二、三人称当中表示命令、允诺、规定等,在这里表示一种规定。
举一反三
It ______ be the postman at the door. It’s only six o’clock.
A.mustn’tB.can’tC.won’tD.needn’t

题型:不详难度:| 查看答案
—I’m going to New York this evening. Is there a flight to New York then?
—There____ be a flight. But you’d better call the booking office to make sure.
A.mustB.mayC.wouldD.will

题型:不详难度:| 查看答案
—The government should try to balance economic growth and pollution from industry.
—____. It’s time to do it.
A.All rightB.ExactlyC.Go aheadD.That’s OK

题型:不详难度:| 查看答案
— Mum, would you please buy me an MP5 player?
— If you can help do some housework the whole vacation,you _______ have one as a reward.
A.shouldB.needC.wouldD.shall

题型:不详难度:| 查看答案
     you play the piano at this time of the day ? I need a good rest for tomorrow’s test.
— Sorry.  
A.MustB.ShallC.CanD.May

题型:不详难度:| 查看答案
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