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1．She practicesrunning （run） every morning，because she wants to join the sports club．

分析她每天早晨練習跑步，因為她想參加運動俱樂部．

解答答案：running
根據 practices 為動詞練習，結合給出的動詞run，可知此處應用固定表達practice doing sth"練習做某事"，所以空處應填run的動名詞running，這里是指她每天早晨練習跑步．故填：：running

點評本題考查用所給單詞的適當形式填空，首先要根據語境明確句意，然后再根據相關語法對所給單詞在形式上做出正確的變化．

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