20 ! : choose the correct adjective with -ed or adjective with -ing in italics in the these sentences . 3) his parents are ussualy worried / worrying when he's late. 4) i heard a very frightened/frightening story. 5) bermet was surprised/surprising to find a letter on her table. 6) the children were terrified / terrifying when they heard a strange noise downstairs. 7) horse riding can be an excited / exciting experience. 8) the boy was disappointed / disappointing by the test result. 9) when learning a new foreing language , grammar rules can be confused/confusing .