this is a bus.把它改为复数句

this is a bus.把它改为复数句 Is this a bus （改为复数句 This is a bus.改为复数. this is a bus.【变为复数句】 把this is a sheep改为复数句 把英语改为复数句This is a map of Japan.(改为复数句)( )( )( ) of Japan. --What is this?--It is a bus.改为复数是什么? This is a bus.改为复数形式的句子 This is a bus 改为单数或则复数 1.this is a bus（改为复数句子） this is a pencil改为复数句 This is a shirt .改为复数句