Bonjour, j'espère que tu vas bien !
Réponse :
Pour commencer, adjectif court + -er = taller than
et adjectif long : more + adj + than
a. Your house is more comfortable than my flat.
b. These jeans are cheaper. You can buy them.
c. Do exercice 1. It's easier.
d. My sister's is younger than me.
e. I think the red box is bigger than the yellow one.
f. Today's weather is worse than yesterday.
g. His brother's are cuter than him.
Voilà j'espère t'avoir aidé.