题目内容
3.Playing computer games is delightful,butspending (spend) too much time on it may do harm.分析 玩电脑游戏令人开心,但是在上面花太多的时间可能有害.
解答 答案:spending
通过分析句子可知,主语为"_ too much time on it",所以此处应该为动名词短语做主语.故答案为spend的ing形式spending
点评 做这道题时要仔细阅读题中条件,然后写出所给单词的适当形式.
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