Помогите пожалуйста с английским вместо ...где надо поставить the

1)... Ukraine is bounded by ...Black Sea and ...Sea of Azov
2)Polissia is a region in ...north of Ukraine
3)... Roman-Kosh is the highest mountain in ...Crimean Mountains
4)The longest river in ,,,Ukraine is .. Dnipro
5)... Kyiv is the capital of Ukraine
6)... west of ...Ukraine is mountainos but ...east is not
7)The state of ...Ukraine is situated in Europe
...Trent is one of the most important rivers of ...England