Word building. Open the brackets.
Russian author Mikhail Bulgakov wrote The Heart of a Dog in 1925, at the (high) of the NEP politics. It is a satire on the Soviet revolution
which tried to transform (man). The story had similarities with Dr. Faustus, Frankenstein and the Island of Dr. Moreau. The real prototype for Professor Preobrazhensky was (possible) a Russian surgeon Serge Voronoff. He was (fame) for his experiments on implanting
humans with animal organs. The novel has become a (culture)
phenomenon which was (wide) discussed.​