问题补充:
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
答案:
(答案→)A. would have done
B. would do
C. should have done
D. should do
解析: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。