You cant imagine that a top student have failed in the college entrance examination. A.

问题补充：

You can imagine that a top student have failed in the college entrance examination.

A. might

B. need

C. should

D. would

答案：

A. might

B. need

(答案→)C. should

D. would

解析：情态动词should在此表示吃惊、怀疑的语气，译为“竟然会……”。

句意：你无法想像一个成绩优秀的学生竟然没有通过大学入考试。