Bonjour !

1. "I can't wear that old coat anymore. I neead a more comfortable one."

2. "Go to Tacy's, it's more fashionable and of better quality."

3. "You are right, but it's easier to go to the shopping center. Tacy's is a lot farther."

4. "All right then. Let's take my car, it's cheaper."

Explications :

Adjectifs courts : adjectif + er (cheap => cheaper)

Adjectifs longs : more + adjectif (comfortable => more comfortable)

Exceptions : good => better, bad => worse, far => father

J'espère t'avoir aidé. Bon courage !