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英语高手进!改同义句Tom is busy with his homework. Tom is [] [] his homeworkhis homework

分类: 作业答案 • 2021-12-02 10:43:22

问题描述：

英语高手进!改同义句Tom is busy with his homework. Tom is [] [] his homeworkhis homework

答

busy doing (be busy with sth=be busy doing sth)