My sister met him at the Central Grand Theatre yesterday afternoon, so he __________ your lecture.
A.couldn't attend | B.mustn't have attended |
C.shouldn't attend | D.couldn't have attended |
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My sister met him at the Central Grand Theatre yesterday afternoon, so he __________ your lecture.
A.couldn't attend | B.mustn't have attended |
C.shouldn't attend | D.couldn't have attended |