Question

__ I do not know  what I ___________ without the suitcase you lent me.
__ Glad to have been of some help to you.

A．would have done

B．would do

C．should have done

D．should do

Answer 1

A

通过without the suitcase you lent me的提示可知此题考察虚拟语气，又根据句意可知是对过去的虚拟，但是should have done意思是“本应该”，所以答案A。