Образуйте от данных слов существительные с помощью суффикса -ist, -ism, -ian,-ment, -or, -er, -age,-hood, -ness

piano, music, electric, Canada, India, to develop, man, kind, cold,

invent, to arrange, treat, state, improve, agree, govern, require, announce, mother, to lead, to write, to read, Russia, Hungary, to visit, to speak, to act, to direct, to drive, to fight, to report, to sing, to swim, to teach, dark, to travel, to sail, achieve, to move, special, social, art, capital, economy, international, to pass, to marry, neighbor, to disappoint, lonely,​