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1. Mariyinskiy Palace is in an old part of city on the top of a hill.

2. Because, Mariya Oleksandrivna, the wife of Tsar Oleksandr || gave money to build a big park near the palace.

3. Teenagers chat about their friends and school life.

1) In Ukraine.

2) cause of Oleksandr's II wife , she gave money to build the park.

3) They chat.