(2013·皖南八校一模)I felt surprised that anyone of his intelligence such an easy test.
A. might have failed
B. could have failed
C. should have failed
D. must have failed
网友回答
A. might have failed
B. could have failed
(答案→)C. should have failed
D. must have failed
解析：选C 考查情态动词。句意：我感到非常吃惊，像他那种智力的人竟然没有通过这么简单的测试。should表“竟然”，有出人意料的意思。