Question

i am surprised that Jane,who has been among the best in my class,___have failed in the exam.

a.must b.should c.would d.could 答案为B，但这样我感觉中文意思不大对哎~~~ 求解释~~~

Answer 1

should
have
done意思是宽友本来该如何如何，结果没有如此。
你很惊讶JANE考试失败了。因为她成绩很好。
说明本来应该很好慎吵槐的结果没考好。事情碰段已经发生了。
所以选B
SHOULD
HAVE
FAILED