题目内容
9．After he failed the exam，Jim made a rightdecision （decide）to give up playing computer games．分析 他考试失利之后，吉姆做了一个正确的决定戒掉玩电脑游戏．
解答 答案：decision．这里的a是不定冠词，后加名词单数，所给单词是decide决定，其名词是decision，make a decision表示做决定，故答案是decision．
点评 de结尾动词变sion结尾的名词单词decide---decision----decisive
persuade---persuasion---persuasive
include---inclusion---inclusive
conclude---conclusion
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