Is Tom busy with his homework?改写句子句意不变( )Tom busy ( ) his homework?
问题描述:
Is Tom busy with his homework?改写句子句意不变( )Tom busy ( ) his homework?
答
Is, doing
be busy with sth = be busy doing sth 忙于做某事
答
Is,doing
be busy doing sth 忙于做某事.