( )my good friend,Kate and Mary.选they are还是these are? 为什么

( )my good friend,Kate and Mary.选they are还是these are? 为什么 Kate is my good friend同义句 Kate and ___ are good ___ they are my friend和these are my friend改错 英语翻译Mary and Kate are good friends.In the morning,they usual Mum,these are my friend,Jim and Mary哪里错了 Kate and Mary are A________ -----____school bags are these?-----They are Tom's and Mary' These are my friend Tom,Kate and John are () my good friends. ( ) they are my friend 1.These are Kate and Mike’s bags.They are_________.(they,the Mary and Kate()good friteds.选a或b或c.a：is（ b：am（c：are