Question

she has been an excellent student

- Mary has been an excellent student since last term. - it’s wonderful that she _____ have made
---It’s said that Mary has been an excellentstudent since lastterm.
---Well, it’s wonderful that she _____ have made such greatprogress these 2 years.
A. can B. must C. should D. may
这题答案是C,为啥是C? 句子如何翻译?谢谢!

Answer 1

should 能表达说话人的诧异.
翻译：
--- 据说,自从上个学期以来,玛丽已经成了一个优秀的学生.
--- 是呀,这两年她竟然进步这么快,真是神奇.