摘要:It's nearly seven o'clock . Jack be here at any moment . A. must B. need C. should D. can 答案是C项.根据语境空白处应填表示具有"随时可能"意义的情态动词.虽然can可以表示可能性.但它往往表示的是对这种可能性的怀疑.例如:Can he still be alive after all these years ? (这么多年之后.他还可能活在人世吗?) should除具有"应该"词义之外.还有一个含义是:will probably 又如:His uncle is working among the enemy officials now . Dangerous things should happen to him at any time . (他的叔叔现在在敌人的军营中工作.危险的事随时都可能发生在他身上.)

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