he needn't have come to see me off in person,____?a.did he b.need he c.has he d.needn't he

问题描述:

he needn't have come to see me off in person,____?a.did he b.need he c.has he d.needn't he
选哪一个?急要!

正确答案选B
这里的need是情态动词.