Mary said she _______ busy and she couldn't go to the cinema with me

问题描述:

Mary said she _______ busy and she couldn't go to the cinema with me
A.is B.was
选哪个,谁什么

B, 因为整个句子都是过去时,表示过去发生的事,所以选B (was 是is/am的过去式)