Kyiv, not Kiev
Dualingo, you have critical mistake in writing of Ukraine's capital name. In ukrainian language it writes "Київ" and in transliterating "Kyiv". Kiev is transliterating from russian language.
Kyiv not Kiev https://m.facebook.com/Kyivnotkiev/
Kyiv is the right version as decided by UNCSGN (United Nations Conferences on the Standardization of Geographical Names) and UNGEGN (United Nations Group of Experts on Geographical Names)."Kiev" is in Russian.
"Kyiv" is in Ukrainian, which makes it the right way to write, since Ukraine is an independent country. Same goes with the name of Ukraine: Ukraine, not "the Ukraine". And, in Russian, "v Ukraine/в Украине" (in Ukraine), not "na Ukraine/на Украине" (on [the territory of] Ukraine).