Ответ:

5. Wishes

  1. I wish I were on holiday. (but I am not) — d wish/regret about a present situation we want to be different
  2. I wish I could speak Spanish. (but I can't) — a wish/regret in the present expressing lack of ability
  3. If only you had been more careful! (but you weren't) — c regret that sth didn't happen in the past
  4. I wish he would stop lying. (but I don't think he will) — b wish for a future change unlikely to happen