this is a dish变复数形式 this is may room用名词性物主代词mine写同义句

this is a dish变复数形式 this is may room用名词性物主代词mine写同义句 This is a tomato变复数形式是? This is a horse.变该句为复数形式 That is her dish变复数 dish怎么变复数? dish（复数形式） dish(复数形式) He is a boy变复数形式 that is a jacket 变复数形式 is that a dish?复数句 This is a knife.怎样变复数. this is a new car.变复数 This is a marker.（变复数） this is a piano怎么变复数 this is a book改为复数形式 This is a dress.改为复数形式 This is a cat.(改为复数形式) This is a box.改为复数形式