Bardzo ladnie napisane, prawie nie ma bledow! ;-))
Dear Ann,
How are you? I'm very well. I'm sorry I haven't written for so long but I was{opcja: I'VE BEEN} very busy. I came to Paris 2 weeks ago to study French. I rent a small flat with my friend in the outskirts of Paris. The French are very friendly and helpful.
I study from 8.00 a.m. to 11. a.m. My group is not very numerous{nie jestem pewna tego uzycia "numerous". Na wszelki wypadek: MY GROUP IS QUITE SMALL}, but there are very funny, sociable students. They are from Poland, Spain, Germany and England. My teacher is very nice and fair. In the afternoon I always go {BEZ:to} sightseeing Paris with my friends from language school. We go together to see monuments, museums or we go to cinemas and to restaurants. Paris is {A} very big, beautyful{pis. BEAUTIFUL} city, you must see it!
Anyway, I have to finish now.
Give my regards to your parents.
Take care,
XYZ