Question

–I don’t know what I _______ without the suitcase you lent me.
–Glad to have been of some help to you.

A．should have done

B．would do

C．would have done

D．should do

Answer 1

C

解析试题分析:句意：——我不知道没有你借给我的提箱我会怎样做。——很高兴能对你有帮助。
“情态动词+v原形” 表示对现在的假设和虚拟；根据句意可知此处表示对过去发生事情的推测，故排除BD选项，should have done “本应该做某事”，根据otherwise判断此处是含蓄型的虚拟语气，选C。
考点：考查虚拟语气。