题目内容
They _____ have arrived at lunch time but the flight was delayed.
|
A.should |
B.can |
C.must |
D.will |
【答案】
A
【解析】考察情态动词 should have done本应当干某事 can have done可能做了某事 must have done一定做了某事 will have done 将要做好
句意为,他们本应该在午饭的时候到达,但是航班被推迟了。
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