问题
选择题
I''m surprised that he ____ to help me when I needed his help .
A．should refuse
B．would have refused
C．should have refused
D．may have refused
答案
C。
should 可以用来表示“竟然”的意思。依下文信息还要用情态动词+ have done 结构。全句意为：我很奇怪，当我需要他帮忙时，他竟然拒绝了。