they are breakfast subs这裏的subs是什么意思

There are 3 ( ).they are breakfast,lunch and dinner. they are breakfast subs这裏的subs是什么意思 句型转换 They are (eating breakfast).对括号内部分进行提问 _____ they ____ 英语一题错题分析A：Who are they eating breakfast?（eat/breakfast）B：Mr.and Mrs.Park.改：Who are eating breakfast?怎么写错题分析 they are great that,s What are they going to do?怎么回答They are going to hvre breakfast.这样回答可以吗? Are they your dogs?---------1No,they are’s 2Yes,they aren‘s3No,they are when they are having breakfast.改写同一句,就两个空. 把句子变为被动语态：They are serving breakfast between six and nine o'clock. my breakfast are eggs. Dave is Paul's brother.They are( ) They are my friend's forks They are Tom's parents.如何提问 they are my father's brothers.提问 they are the smith's family改错, They are for our teacher's tiger are s().they eat people 改错They are our Math' s teachers.