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

—I don’t 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→)A. would have doneB. would doC. should have done D. should do解析：试题分析:考查虚拟语气。从句中you lent me和答语中的to have been 可知事情是发生在过去，所以主句是对过去的虚拟，应该用 would have done，所以A 选项正确。句意：--要是没有你借给我的手提箱，我真不知道该怎样做。--很高兴能够对你有所帮助。

这个答案应该是对的