The professor ________at 8 o’clock,but he has not shown up yet,which worries all

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 arriveB.must have arrived
C.might have arrivedD.was supposed arriving

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。
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