Упражнение 3 можно выбрать вариант по желанию
Упражнение 4
Dear Carla,
I think, your hobby should be something that gets you out of the house.
You shouldn't do social media as your hobby, because you always spend your free time in your smartphone and you rarely get out of the house.
As your friend, I should to select sport as your hobby, because sports is important piece of your life.
Good luck,
Your best friend