The key to exercise solutions in chapter Unit 76 - The 4 for the textbook English Grammar in Use with authors Raymond Murphy from Cambridge University Press
Question
What do you call the people of these countries?
Answer
Canada ↦ a Canadian ↦ Canadians
Germany ↦ a German ↦ Germans
France ↦ a Frenchman / Frenchwoman ↦ the French
Russia ↦ a Russian ↦ Russians
China ↦ a Chinese ↦ the Chinese
Brazil ↦ a Brazilian ↦ Brazilians
England ↦ an Englishman / Englishwoman ↦ the English