1) She ______ have forgotten about the meeting; she’s usually very punctual. a) can't b) must  2) They ______ have missed the train as they are already 10 minutes late. a) might b) can't 3) He ______ have finished the project by now; it was due yesterday. a) can't b) must 4) I ______ have left my keys at home; I can’t find them anywhere. a) can't  b) could 5) The package ______ have arrived by now; it was sent two weeks ago. a) can't b) must 6) She ______ have taken the wrong bus; she’s not familiar with this area. a) might b) can't

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