题目内容
根据题意及所给首字母提示完成句中所缺单词。
It is n________ for older people to understand what the young people think and feel.
答案：necessary
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题目内容
根据题意及所给首字母提示完成句中所缺单词。
It is n________ for older people to understand what the young people think and feel.