Réponse :
a) This red sweatshirt is cheaper than the green one, and it looks better too.
b) These trainers feel more comfortable! Are they bigger than the white ones?
c) In the late '70s, people started buying flashier clothes. It was the Saturday Night fever!
d) In the 1980s, dark colours became more popular, probably because of the Punk look.
J'espère que ma réponse vous a aidé ! :)