He must have been ill,or he ( )to the party last nigjtA would have been B should be C would be D had to be

问题描述:

He must have been ill,or he ( )to the party last nigjt
A would have been B should be C would be D had to be

A 本应该。。。
他一定是病了,不然他昨晚本应该去party的

A
请及时采纳,多谢!