初一上英语练习册上的题Lucyisbusydoingherhomework.(改为同义句)Lucyisbusy________.横线上应填什么?
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题目内容:
初一上英语练习册上的题
Lucy is busy doing her homework .(改为同义句)
Lucy is busy____ ____.
横线上应填什么?
优质解答
Lucy is busy doing her homework.
=Lucy is busy with (her) homework.
be busy doing sth.
=be busy with sth.
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