Tony and Mary is going to have a picnic 这句话错在哪里?

Mary and Tony are [ ](me)good friends Tony and Mary is going to have a picnic 这句话错在哪里? Hello,Kate.__ is Mary and __ is Tony.答案是She,he 还是This,this 为什么? Mary,Belly and Tony are English.改成疑问句,并回答 Both Tony and Mary want to be tennis ______(player) name is Tony.name is Mary.And name is Nick.A.Her,His,my.B.His,Her,my.C.My,His,Her.D.my,Her, Tony is--- boy and Lucy is --- girl. Four children,Tony,Jim,Mary and Kate,all have a birthday party.In one year's time Kate will be the age Tony is now.Mary is half of Jim's age and is three years younger than Kate.Kate is 11 year's old.What age will Mary be when Kate is 15 years old. 我自己写的 this is my family .Frank and Mona is my grandprents .Bob and Gina is my parents.my uncle is nick .my aunt is cindy .my name is mary .tony is my brother. Tony is tow sisters and three brothers. -------- bedroom is very big.A Tom and Tony B Tom's and Tony's C Tom's and Tony D Tom and Tony's Tony and Tom are twins.And Tony is ____(strong) of the two. hello my ____is Tony green.Tony is my____name and green is my ____ name. This is tony and h--------- last name is brown Emma is Mary's< Tony is Emma's< > Emma is Mona's< > This is Emma's family< > Tony is good at painting and drawing.(改为否定句）Tony【 】good at painting【 】drawing. tony is my cousin的同义句改为tony and i are_________ mary and mike._________ mother is a worker.A.Mary and Mike’s B.Mary’s and Mike’s C.Mary’s and Mike D.Mary and Mike