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解析：【原文】W: Jack, where is the memorandum M: Which memorandum W: The one from the executive vice president’s office.M: I didn’t see it. When did it come in W: Yesterday afternoon. Just before five o’clock. I just glanced at it, and then I put it down.M: Where did you put it W: I remember putting it in one of the file folders. But I forget which file folder it was.M: What’s the subject of the memo W: It’s about changes in the accounting procedures.M: That sounds important. Who else got a copy of it W: I think Mrs. Carter in the accounting office got copies.M: Shall I go and ask her W: Yes, that’s a good idea.【评析】本段对话围绕一个备忘录（memorandum）展开，以两人对话的形式说明该备忘录的来源、重要性以及寻找方法等。本题考查考生对细节信息的理解和把握，以及对言外信息的推理能力。