You can’t imagine that a well-behaved gentleman be so rude to a lady.A. mightB. needC. s

问题补充：

You can’t imagine that a well-behaved gentleman be so rude to a lady.

A. might

B. need

C. should

D. would

答案：

A. might

B. need

(答案→)C. should

D. would

解析：should在此表示惊讶的感情色彩，意思是“竟然”。