9．Since Mary lacked an Internet connection，she felt cut out from the outside world．out改為off．

分析 由于瑪麗不能上網(wǎng)，她感覺自己與外面的世界隔絕了．

解答 答案：out改為off
分析句意可知，此處考查的應(yīng)是固定短語cut off from"與…隔絕"的用法；故用off．

點評 本題考查了固定短語cut off from的用法；做類似的題時需要熟練掌握一些固定短語的表達方式及用法．

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