【題目】— The government must have taken measures to lower the house prices next year, ________it?

— Yes. I guess so.

A. didn’t B. hasn’t C. mustn’t D. won’t

【答案】B

【解析】

試題分析：考查must表推測(cè)的反意疑問句。must表示推測(cè)，意為 “肯定，一定’’,其疑問部分必須與must 后面的主要?jiǎng)釉~相呼應(yīng)。當(dāng)must 用于表示對(duì)過去的推測(cè)時(shí)，形式為 must have done, 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），反意疑問句部分用“didn’t +主語”；如果強(qiáng)調(diào)動(dòng)作的完成(一般沒有過去的時(shí)間狀語)，反意疑問句部分用“haven’t /hasn’t +主語”。句中無過去的時(shí)間狀語，主語是it 所以反意部分用hasn’t it.

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