Question

— Mary,how did your maths test go??

   —I had thought I _____ ,but in fact I came in the top 10 in my class. ?

   A.should have failed

   B.couldn’t have failed?

   C.might have failed

   D.shouldn’t have failed?

Answer 1

C?

解析:

  考查情态动词的用法。might have done sth.表示对过去发生的事情的猜测或担心，意思是“或许会……”，而事实上不一定如此。