You must have waited here for a long time, ______?


  1. A.
    mustn’t you
  2. B.
    needn’t you
  3. C.
    didn’t you
  4. D.
    haven’t you
D
考查反義疑問句。當(dāng)must用來表示對(duì)過去的情況進(jìn)行“推測(cè)”（must + have done）時(shí)，如強(qiáng)調(diào)對(duì)過去情況的推測(cè)（一般句中有過去的時(shí)間狀語），反意疑問句部分要用“didn’t + 主語”；如果強(qiáng)調(diào)動(dòng)作的完成（一般沒有過去時(shí)間狀語），反意疑問句部分要用“haven’t / hasn’t + 主語”。
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科目：高中英語 來源： 題型：閱讀理解

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科目：高中英語 來源：四川省2010屆高三下學(xué)期第一次模擬考試 題型：閱讀理解


D
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College libraries are designed primarily for research and study. To explain its use, let us choose a research topic and follow the step-by-step procedure of looking up the material for the paper．

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