Закончите предложения.1has served for almost 150 years as a key to discovering new elements and it has retained its key capacity until now.2.His lectures were always listened to with great ...3began to write a great text book of chemistry, known in its English translation as "Principles of Chemistry" Hard work preceded it.Mendeleyev made thousands of experiments and calculations, wrote a lot of letters, studied many reports.4.All those data were being brought together ...5earned him lasting international fame.6were being brought together and grouped in a special way.7serves as a basis for thousands of researches.8.It is studied by philosophers, historians, teachers ..

Moscow is the majestic capital of the Russian Federation, in addition, it is the largest city in Russia and Europe by population. Moscow is a major center, from the point of view of economy, politics, science, culture and tourism. Every day millions of people from different countries visit Moscow. Many come here for business, many for work or study, and some for tourists - to go on a journey through the city's famous streets and look at local attractions. In addition, Moscow is an excellent recreation center, here you will find a huge number of restaurants, clubs, discos, shops. Billiard clubs in Moscow are also very popular with tourists.

Yakub Kolas, real name Kanstancin Mickievič was a Belarusian writer, People's Poet of the Byelorussian SSR, and member and vice-president of the Belarusian Academy of Sciences. He was very interesting and talented writer, which is now well-known all over the world. He wrote collections of poems Songs of Captivity and Songs of Grief, poems A New Land and Simon the Musician, stories, and plays. His poem The Fisherman's Hut is about the fight after unification of Belarus with the Soviet state. Besides all of those he was really kind and smart person. He was awarded the Stalin Prize in 1946 and 1949. In honor of Yakub Kolas, a square and a street in the center of Minsk bear his name.