2．(2011江苏高考)—I left my handbag on the train，but luckily someone gave it to a railway official.
—How unbelievab le to get it back！I mean，someone ______ it.
A．will have stolen B．might have stolen
C．should have stolen D．must have stolen
解析：句意：——我把手提包忘在了火车上，但幸运的是有个人把它交给了铁路部门的一名官员。——还能找回来多么令人难以置信！我的意思是，有人原本可能把它偷走的。might have done“可能已经……”，表示对过去发生之事的不太肯定的推测，符合题意。will have done表示将来完成时；should have done本应该做某事但实际未做；must have done表示对过去发生之事的肯定推测。
答案：B
3．(2011天津高考)I ______ sooner but I didn’t know that they were waiting for me.
A．had come B．was coming
C．would come D．would have come
解析：句意：我本该早点儿来的，但我不知道当时他们正在等我。根据后面一句话的意思可反推出说话人觉得自己当时应该早点到，但实际上过去并未这么做。would have done sth.表示“过去本来会做某事”，暗含的意思是过去并未做到，符合该处的语意。
