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It’s nearly eight o’clock. I must hang up and get down to work. My boss________ be here at any moment.
A.shouldB.mustC.couldD.would
A

试题分析:考查情态动词辨析。A应该,竟然;B必须,一定;C能够,可以;D会,过去常常;句意:现在已经8点了,我要挂电话工作了,我的老板应该已经来了。根据句意说明A正确。
点评:情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语。can (could) 表示说话人能,可以,同意,准许,以及客观条件许可;will, would用于疑问句表示说话人向对方提出请求或询问,用 would 比 will 更婉转,客气。Shall表示命令,警告,允诺,征求,劝告,建议惊奇。
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