Напишите one или ones .
1. If you buy two botles of water , you get a third ..... for free.
2. I would like to have a cupcake - the red ..... looks great .
3. She needs new shoes , the old ..... are to small .
4. This bag is very old . I need a new ... .
5. I would like to have some cupcakes - the green ... looks great .