The professor ________at 8 o’clock，but he has not shown up yet，which worries all
题型：不详难度：来源：
The professor ________at 8 o’clock，but he has not shown up yet，which worries all of us.| A．was supposed to arrive | B．must have arrived | | C．might have arrived | D．was supposed arriving |
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答案
| A |
解析
试题分析:考查虚拟语气。A应该到达；B肯定已经到了；C可能已经到了。根据后面句子的时态判断此处是对现在情况的推测，而B、C选项均为对过去发生事情的推测，所以排除B、C选项； D选项形式错误，故A为正确选项，句意：教授本应该8点钟到，但是他现在还没露面，这让我们非常担心。 |
举一反三
| A．thought | B．would think | C．had thought | D．have thought |
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