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        1. Your brother helped the little boy,       he?
          A.didn’tB.doesn’tC.doesD.did
          A

          試題分析: 反義疑問句一般遵循前肯定則后否定,前否定則后肯定,疑問部分時態(tài),人稱要與前文保持一致。前文為肯定,故后面要用否定形式。本文前文為一般過去時態(tài),故反問部分也要用一般過去時態(tài),故選A。
          點評:本題關(guān)鍵點在于對前文時態(tài)的判斷,判斷時態(tài)有多種方法,如時間詞,上下文語境等,本題就是憑借時間詞before判斷出前文為完成時態(tài),平時需加強練習。
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