Possible answers: one (cardinal number), first (ordinal number) a solution (noun), to solve (verb) to complain (verb), a complaint (noun), complaining (adjective) constant (adjective), constantly (adverb), constancy (noun) they (personal pronoun), their (possessive pronoun), them (objective pronoun) to commute (verb), a commuter (noun)
Задание

Possible answers:

  1. one (cardinal number), first (ordinal number)
  2. a solution (noun), to solve (verb)
  3. to complain (verb), a complaint (noun), complaining (adjective)
  4. constant (adjective), constantly (adverb), constancy (noun)
  5. they (personal pronoun), their (possessive pronoun), them (objective pronoun)
  6. to commute (verb), a commuter (noun)