用所给单词的适当形式填空(初二牛津)Are you here on ________(busy) or for fun.

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用所给单词的适当形式填空(初二牛津)Are you here on ________(busy) or for fun.
用所给单词的适当形式填空(初二牛津)
Are you here on ________(busy) or for fun.

用所给单词的适当形式填空(初二牛津)Are you here on ________(busy) or for fun.
business
固定短语 on business “(因公)出差”.