Question

Jack didn't come to our meeting last time，did he? No,he_______，We had changed our plan.

A.needn't have to come
B.didn't need to come
C.needn't have done
D.shouldn't have come
答案不是b.。。。

Answer 1

选A

追问

能很果断的说出为什么吗么。

追答

needn't为情态动词，解释为不需要
而选项D中have后加come，不成立。have加to加动词原形，解释为不得不。而D中没有to，不成立。have加动词的完成时，而come并非现在完成时，不成立。
选项C中have done在题目中解释不通。
所以选A。

追问

就是这个B的问题啊为什么不对

追答

did't need中need为动词，而结合题目看，need在本题中的意思应为需要，所以选A。

Answer 2

.C,needn't have done 没必要在做某事

Answer 3

d