One third of the Ukrainian population live in the eastern region near Russia and speak Russian, most of them ______ closer to Russia.

—Would you like to go to the shopping mall with me tonight? —I’d like to, but I have to attend a lecture _______ in the school library. 

_________ to 100℃, water will boil. 

__________ her way through the excited crowd in the bookstore, the woman writer is surrounded by a group of admirers.

 We all think it most foolish ______ this mistake.