Найдите ошибки и исправьте надо it's a lovely toy, is it? mr black is not old , is it? there is the book in the bag. there are two books in a bag . tom was in london last year, was he? they are at the zoo aren't there?

It's a lovely toy, isn't it? Mr Black is not old, is he? There is a book in the bag. Tom was in London last year, wasn't he? They are at the zoo, aren't they?