Составить существительное с окончанием tion, er, ment.

1.революция – revolution; информация – information; локация – location ;модернизация – modernization; провокация – provocation

2.accuser - обвинитель . achiever - успевающий ученик;

3.equipment (оборудование)

1. The letters have not been sent yet.
2. Have you sent the letters already?
3. I sent them tomorrow.
4. Please, make sure that the letters have been sent by tomorrow evening.
5. The letters were not sent yesterday because we forgot to buy stamps.
6. Finally the letters were sent.
1. The article was being when I came in the classroom.
2. The article has not been translated yet.
3. It was not translated yesterday, so it needs to be translated today.
4. If we do not finish it today, we shall  translate it tomorrow.
5. The article will have been translated by the end of the week.
6. If I am not mistaken, the article was translated some time ago.
7. I am afraid this article will never be translated.

There aren't exact information about previous flags. From beggining of 1920 and till the middle of 1980 year much has changed in design of flag of TASSR.
In 1990 Tatarstan has ceased to be autonomous. So It was decided to take a temorary flag of Tatar community center. During the year, comission had been developing national symbols. The white moon and star adorn the flag, which is divided by a diagonal, combining shades of red and green colours.
On the 29th of November,1991, by the decision of the Supreme Council, the flag became national symbol of Tatar Republic. It was a quite long way to set the present flag.