Перевести это письмо дорогая лена мою лучшею подругу зовут алёна ей 12 лет. она на самом деле не высокая, я метр 60 сантиметров. она тонкая, у неё карие глаза, длинные темные волосы и прямой нос. она общительный, даже может быть разговорчивой. она веселая и смешная. она также честная. она любит играть на пианино . она хорошая подруга, потому что она никогда не врет. с ней интересно поговорить .

Dear Lena,
My best friend's name is Alena, she is 12 years old.
Actually, she is not tall. I am one meter 60 centimetres.
She is slim, she has brown eyes, dark long hair and a straight nose.
She is very sociable. She can even be talkative sometimes.
She is very funny and cheerful.
She is also honest.
She likes playing the piano.
She is a very good friend, because she never lies.
It is really interesting to talk to her. 

1 The Constitution is the main document of the USA.

2 The Constitution of the USA was signed in 1787.

3 Twenty- six Amendments have been added to the Constitution since 1787.

4 The Constitution proclaims a federal system of government which keeps both the states and the federal power from getting too much power.

5 The federal government is given  powers to make peace or war, to issue money and to regulate the trade and so on.

6 The federal power is located in Washington, D.C.

7 The legislative power is vested in Congress.

8 There are 435 members in the House of Representatives .

9 The President is the head of the executive power in the USA.

10 The President's elections take place every 4 years.

11 The Secretary of State deals with foreign affairs in the USA.

12 The Bill of Rights guarantees individual liberties: freedom of word, religion and so on.

Объяснение:

1. “I’m going out now, but I’ll be back by nine,” he said. He said he _is going___ out, but he will come___ back by nine.

2. He said, “If what you say is true I must go to the police.” He said he __will__ go to the police if what I said was true.

3. Jack said, “It was a very useful discussion.” Jack said it was___ a very useful discussion.

4. John said, “I can solve that problem.” John told us he _can solve that problem.

5. Dave said, "I have finished the project." Dave told me he has finished the project.

6. “I’m going out now, but I’ll be back by nine,” he said. He said he is goinh out, but he will come___ back by nine.

7. “I’m living with my parents at present,” she said, “but I hope to have a flat of my own soon.” She said she is living___ with her parents at present, but she hope__ to have a flat of her own soon.

8. “I’m leaving tomorrow,” she said. – “We’ll come and see you off,” we said. She said she will leave___ the next day, we replied we will come___ and see her off.

9. “We’ll wait for you if you're late,” they said. They said they will wait___ for us if we will late___ late.

10. He said, “If what you say is true I must go to the police.” He said he must go to the police if what I _said___ was true.

11. Julie said, "I don't want to go." – Julie said she doesn't want to go.

12. "I'm going to move to Ohio," said Bruce. – Bruce said he is going___ to move to Ohio.

13. Jack said, “It was a very useful discussion.” – Jack said it _was__ a very useful discussion.

14. "I may be late," said Mike. – Mike told me he may be late.

15. Tom said, “I have finished my work.” – Tom told us he has finished___ his work.

16. Julia said: “I’ll come back tomorrow.” Julia said she will come back__ back the next day.

17. Mike said: “I’ve bought CDs to watch tonight.” Mike said he _has bought___ CDs to watch that night.