This is a bus. That is a sheep.的复数形式

This is a bus. That is a sheep.的复数形式 This is a yellow bus ,and that isalso a yrllowbus改写成复数 this is a bus.【变为复数句】 Is this a bus （改为复数句 This is a bus.改为复数. Is that a bus?复数形式 is/am this that ciass bus的复数形式 This bus is[ ] people that is a bus.(变为复数句）that is a bus.(变为复数句） 用this that these those填空 ( )is a car and ( )i用this that these those填空( )is a car and ( )is a bus( )are books and ( )are pictures this,a,is,bus 怎么连词成句 This is a bus.改为复数形式的句子 this is a bus.把它改为复数句 1.this is a bus（改为复数句子） This is a bus 改为单数或则复数 Is this a bus!翻译成中文是什么? This is a bus.（改为一般疑问句） this is a bus.(改为否定句）