This is a boy.this is a baby.that is a book.is that a ball? this isnt a mouse.that isnt a cat.my tooth is white.this is a man.this is a khife.that is his pen. поставить во множественное число напишите

There are boys.There are babies . Those are books.Are those balls?There aren't mousses . Those aren't cats.My teeth are white.Those are men.There are khifes.Those are his pens.