圣诞节会下雪吗图片:虚拟语气

来源:百度文库 编辑:高校问答 时间:2024/03/29 21:33:46
一道单选题,是这样的:
Susan could not have written to him, or he ______ received her letter.
A.has
B.had
C.would have
D.could have

应该选哪个?为什么?谢谢!

C
Susan定是没有写信给他,否则他就受到了她的信.

or代表"否则"=If she had written to him, he could have received her letter.

C
通上

C