-I didn’t go to the art show, because I&nbs

-I didn’t go to the art show, because I lost my ticket.-You have borrowed mine. I didn’t go to see it anyway.A.mightB.needC.couldD.must

C解析
试题分析：考查虚拟语气。Might have done sth也许做了某事；need have done 需要做，实际上却未做；could have done本可以做，实际上却未做；must have done一定做了某事；句意：—我没有去参加艺术节，因为我的票丢了。—你本可以借我的票的。我反正没有去。根据句意说明C正确。
考点：考查虚拟语气中的情态动词用法
点评：情态动词与have done连用有多种不同的意思。如：Might have done sth也许做了某事；need have done 需要做，实际上却未做；could have done本可以做，实际上却未做；must have done一定做了某事；

就是这个解释