Ответ:

Краткое пояснение: Необходимо образовать вторую и третью форму глагола (Past Simple и Past Participle), учитывая, что они совпадают.
  • 1) make – made – made
  • 2) cut – cut – cut
  • 3) get – got – got
  • 4) bring – brought – brought
  • 5) pay – paid – paid
  • 6) enjoy – enjoyed – enjoyed
  • 7) buy – bought – bought
  • 8) sit – sat – sat
  • 9) leave – left – left
  • 10) happen – happened – happened
  • 11) hear – heard – heard
  • 12) put – put – put
  • 13) catch – caught – caught
  • 14) watch – watched – watched
  • 15) understand – understood – understood

Ответ: смотри решение выше