He is busy_______(忙做作业)He was busy _____(perpare)for his journey.

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He is busy_______(忙做作业)He was busy _____(perpare)for his journey.
He is busy_______(忙做作业)He was busy _____(perpare)for his journey.

He is busy_______(忙做作业)He was busy _____(perpare)for his journey.
第一题:with doing his homework
第二题:with preparing

doing his homework
perparing
be busy doing something 忙于做某事
希望你能满意噢!

He is busy doing his homework. He was busy preparing for his journey.

第一空:with his homework /doing his homework
第二空:preparing
忙于做某事 be busy with sth
be busy (in) doing sth.

(1) with/at/over/in+doing homework
(2) in perparing
其中两题中的in都可以省略。