请改正下列错误句子1.is writing a report here.改正:_____________________

请改正下列错误句子
1.is writing a report here.
改正:__________________________________________________________
2.wu"s sister are eat over there.
改正:__________________________________________________________
3.where are zhang peng?
改正:__________________________________________________________
4.john are very busy today.
改正:__________________________________________________________
5.Mary is do the dish now.
改正:__________________________________________________________