Here you go :) I believe this is all correct
Answer:
las clases difíciles
Explanation:
Add an <em>-s</em> to <em>clase</em>, and add an <em>-es</em> to <em>difícil</em> because adjectives have to match the plurality of the word they describe.
Los viernes, yo voy al cine con mis amigas.
On Fridays, I go to the movies with my friends.
Los fines de semana , yo voy al center commercial a comprarme ropa nueva.
On the weekends I go to the mall to buy new clothes.
A veces, yo voy a esquiar y es mucha diviersion.
Sometimes I go skiing and it's a lot of fun.