Написать письмо другу по переписке с описанием одного из городов, которые вы посетили (пусть будет киев). write a letter to your pen friend describing one of the cities you visited.

Kiev is the capital of Ukraine, located in the north central part of the country on the Dnieper River
Today Kiev is an important industrial, scientific, educational and cultural centre of Eastern Europe. It is home to many high-tech industries, higher education institutions and world-famous historical landmarks. The city has an extensive infrastructure and highly developed system of public transport, including the Kiev Metro.
There are many historical places in Kiev. For example, St Sophia Cathedral, which was built in the 11th century, Kievo-Pecherskaya Lavra that was founded in the 11th century, St Michael’s Golden-Domed Monastery, which was ruined and recently completely restored, St. Andrew’s church in baroque style  
There are lots of museums in Kiev: the Museum of Ukrainian Arts, the Historic Museum, the Taras Shevchenko Museum, the Lesya Ukrainka Museum, the museum of M. Bulgakov and others.