英语高手进!改同义句Tom is busy with his homework. Tom is [ ] [ ] his homeworkhis homework
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
working on
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busy doing.
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engaged on
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hasten with /hurry up
答
busy doing (be busy with sth=be busy doing sth)
答
busy doing
occupied with