日韩亚洲一区中文字幕,日韩欧美三级中文字幕在线,国产伦精品一区二区三区,免费在线欧美性爱链接

      1. <sub id="o5kww"></sub>
        <legend id="o5kww"></legend>
        <style id="o5kww"><abbr id="o5kww"></abbr></style>

        <strong id="o5kww"><u id="o5kww"></u></strong>
        1. 精英家教網 > 初中英語 > 題目詳情
          ﹣Why are the windows so dirty?
          ﹣Because we __________ them for a long time.
          A. have cleaned         B. haven’t cleaned         C. didn’t clean
          B

          試題分析: 句意:為什么窗戶那么臟?因為我們很長時間沒清潔了。for a long time很長時間,for加時間表一段時間,用于現在完成時,窗戶臟的原因是沒有清潔,故選B.
          練習冊系列答案
          相關習題

          科目:初中英語 來源:不詳 題型:單選題

          Trees and flowers ________every year to make our country more beautiful.
          A.is plantedB.was plantedC.are plantedD.were planted

          查看答案和解析>>

          科目:初中英語 來源:不詳 題型:單選題

          When I got home last night, my parents ____ for me at the table.
          A.waitB.waitedC.were waitingD.have waited

          查看答案和解析>>

          科目:初中英語 來源:不詳 題型:單選題

          They_________ all their money, so they have to walk home now.
          A. spend     B. will spend      C. have spent       

          查看答案和解析>>

          科目:初中英語 來源:不詳 題型:單選題

          ----When __________ they leave here ? ----Next Monday.
          A.doB.willC.doesD.are.

          查看答案和解析>>

          科目:初中英語 來源:不詳 題型:單選題

          —Jim, could you tell me if you _____________ our party tomorrow?
          —I think I will if I _____________ free.
          A.will take part in, will be B.take part in, am
          C.will take part in, amD.would take part in, will be

          查看答案和解析>>

          科目:初中英語 來源:不詳 題型:單選題

          The students told us _____________last summer vacation.
          A.where did they campB.where will they camp
          C.where they campedD.where they will camp

          查看答案和解析>>

          科目:初中英語 來源:不詳 題型:單選題

          ---Have you seen Dr. Adams recently?
          ---No. He __________ Hong Kong for an important meeting. He’ll come back tomorrow.
          A.has gone inB.has been inC.has gone toD.has been to

          查看答案和解析>>

          科目:初中英語 來源:不詳 題型:單選題

               you see the film Journey to the West yesterday?
          —Yes. But the film      for 5 minutes by the time I got there.
          A.Do; had begunB.Do; had been on
          C.Did; had begunD.Did; had been on

          查看答案和解析>>

          同步練習冊答案