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        1. —What’s the matter with you? You look so worried.
          -- I don’t know ___________ the problem.
          A.what to solveB.how to solveC.to solve whatD.how can I
          B

          試題分析:根據(jù)上文句意,你怎么了?你看起來這么焦慮。——我不知道如何解決這個(gè)問題。What意思是什么,指具體事物。How是怎么怎樣的意思,指方式。根據(jù)題意可知這是說的是解決問題的方式,選項(xiàng)D缺少謂語動詞,故選B。
          點(diǎn)評:英語中的疑問詞很多,需要加以區(qū)分牢記。
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