Put the given adjectives into the correct forms

1. Kroger is [ ] supermarket in the USA.
2. It's well-known that [ ] the customers in a supermarket are, [ ] they buy!
3. The sandwiches here are a lot [ ] than those in the supermarket across the street.
4. Eco-friendly manufacturers are trying to use [ ] and [ ] packaging these days.
5. The shop's own brands are often as [ ] the brand names.
6. This shopping centre is by far [ ] I've ever been to.