_1___is a boy._2__name's Mike.And this is Kate._3__is a girl

This is a boy and a girl.为什么不说these are a boy and a girl. Kate is a beautiful and lively girl this is the ---ball it's not the ---- A boy girl B boy girl' This is a boy ,----that's a girl .空里是填and 还是but ,一定不能是but 么. 1.This is a girl.(改为复数句) 2.He is kate's fathe this is a girl and that\'s a 阅读理解This is Kate's room.A big bed ,a table ,a computer and s Mike is a ----- boy. 6.This is ________ ball.It's not ________ A.the boy's,girl's a boy and girl This is a boy ang a girl.Li Ming and Danny are hungry.都是两个人, This is Kate,s room.You can see a desk and a chair in the ro