—DidJohnsongototheconcertwithhisfamilyyesterday?   —Th...

问题详情：

 —Did Johnson go to the concert with his family yesterday?

    —The experiment report to be handed in tomorrow, he it.

A. scheduling; couldn’t attend

B.  scheduled; couldn’t have   attended

scheduled; couldn’t have attended

D. to be scheduled; couldn't attend

【回答】

B

知识点：虚拟语气与情态动词

题型：选择题