1) Informal greeting (неформальное обращение) например: Dear Mary, Hi daniel...)
2)an introduction in which you write your opening remarks and mention the reason for writing (вступление) - здесь спроси о его здоровье, как его дела, ну или что-то вроде этого
3) A main body in which you write about the the subject of the letter in detail, starting a new paragfaph for each topic ( главная тема, где ты раскрываешь суть своего письма, рассказываешь ему свой рассказ)
4) A conclusion in which you write your closing remarks (заключение, заключительная фраза) например: I've got to go now. Write back soon.
5) Informal ending (неформальное проание) например: Love/ Take care/ best wishes/ Yours + your name)
Это план письма.
В сочинении ты можешь написать что угодно. Как ты ходил с друзьями по магазинам, как ты со своей семьей ходили кушать в ресторан, как ты ходила в кино или кто-то пригласил тебя на день рождения. Впрочем это не важно...
Удачи*
I'd like to describe my best friend. She has a beautiful round face,a small, slightly convex forehead. Her skin is fair and her cheeks are flushed. The eyebrows are dark, in an even semicircle. The nose is small, straight, slightly turned up. The eyes are large, gray-blue, with long thick lashes, the expression of the eyes is always friendly and kind. Her lips are pink and even, her teeth are white,and when she smiles, funny dimples appear on her cheeks. My friend's hair is dark and wavy, cut straight and just below her shoulders. My friend is slender, her posture straight, her shoulders slightly thrown back.
My friend is very sociable, so it is very easy to talk to her and find a topic for conversation. Another very important trait of her character is responsibility,if she was entrusted with some important business, be sure she will do everything perfectly. She is also a very creative person,she has a lot of different ideas in her head and this is not surprising, because she draws perfectly. And she also has a little sister,she always has an extra minute to play with her.
This is my best friend-beautiful, kind and caring.
12/ national
13/ Optimization
14/ Opportunity cost
15/ know
16/ utility
17/ Scarcity
18/ Productivity
19/ Equality
20/ Efficiency