Образуйте множественное число от существительных.

Armchair, box, boy, bus, editor-in chief, eye, family, fisher-man, sheep, passer-by, datum, video, roof, manservant.

Armchairs, boxes, boys, buses, editors-in-chief, eyes, families, fisher-men, sheep, passers-by, data, videos, roofs, manservants.