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--- Don't worry. I've just sent an ambulance to you. They ________ be there any second.
A.couldB.mightC.wouldD.should
D

试题分析:考察情态动词辨析。A可能,也许;B也许;C会,过去常常;D应该;句意:不要担心,我已经排了一辆救护车了,他们应该很快就到了。根据句意说明should表示推测,意为:应该。是一个留有余地的推测。故D正确。
点评:情态动词就是表示说话者对事情的一种看法,也就是一种语气。情态动词的用法一直是命题者常设置的考点和重点,平时要加强记忆。值的注意的是,中学阶段的情态动词常考额有13个,can-could; may-might; should-ought to ;had better ;will-would;   need;  have to .考生应注意对这13个情态动词的用法多总结,多运用。
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