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9．-Simon，can you answer the door？Iam playing（play） chess with your father．
-OK．

分析 --西蒙，你能開門嗎？我和你爸爸正在下棋．
--好的．

解答答案：am playing 考查單詞填空．根據語境西蒙，你能開門嗎？我和你爸爸正在下棋，要用現(xiàn)在進行時完成句子，構成是主語+be+doing，主語是I，be動詞用am，play的現(xiàn)在分詞是playing，故答案是 am playing

點評解答此題的關鍵是根據語境推測要填內容表達的含義，然后能理解各選項內容，有時可能沒有必要細細區(qū)分每個單詞的含義，僅根據句子語氣就可以判斷出正確答案．

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