他们正忙着工作的英语,They're __ __. 在线等

他们正忙着工作的英语,They're __ __.

答案:They are busy with work.
动词短语:be busy with:忙于.....
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两个空格

追答

两个空格的话,应该是这样的:

They're (busy)(working).

短语:be busy+doing(忙于....)

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第1个回答  2013-09-17
They're busy working.本回答被提问者采纳
第2个回答  2013-09-17
They're busy working.
be busy doing sth.
be busy with sth.
第3个回答  2013-09-17
They are busy with their work