__ I do not know  what I ___________ without the suitcase you lent me.
__ Glad to have been of some help to you.
A．would have doneB．would doC．should have doneD．should do
A
通過without the suitcase you lent me的提示可知此題考察虛擬語氣，又根據(jù)句意可知是對(duì)過去的虛擬，但是should have done意思是“本應(yīng)該”，所以答案A。
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