Kate greeted Akmaral and said that she was writing to him/her to tell him/her about their stay in Washington, DC.She said that he/she had asked her to write about the US capital and added that she was doing it in that letter.She continued that they really loved the city, it was so green and so clean.She added that it is(was) situated on the Potomac River, on a piece of land called the District of Columbia, people called the US capital Washington, D.C.She explained that it was not the biggest city in the United States, but it was the most important.She informed that the buildings were not very tall, the streets and avenues were straight, green and beautiful. She said that the longest and the biggest avenues were named after American states.She said that they had already done the centre of the city.She explained that they had been to the White House and seen the Capitol. She said that the Capitol was really great, that was where the United States Congress meets (можно не изменять это общепринятый факт ) and makes laws. She said that the building of the White House was very beautiful with tall columns and the flag on the roof.It is (was) the US president's residence.She explained that (was) is where the president lives (lived) and works(worked). It is(was) one of the famous buildings in the world. She explained that its name came from the fact that it is a white house. Tourists couldn't see the part where the president lived but they could see the Red Room, the Blue Room and the Green Room and some other rooms. By the way, the city was famous for its museums. She said that she had been to the Natural History Museum but hadn't seen the others yet .