busy百思特网的用法（busy用法总结）

busy用法总结

be百思特网 busy doing忙于做某事，动词用成v.ing

They are busy doing their homework.

他们正忙于做作业。

be busy with sth.忙于做某事，但w百思特网ith后跟名词或代词

They are busy with their homework.

他们正忙于做作业。

中考语法点：be+形+doing

be worth doing 值得做某事.......

be busy doing