James Grant was fishing (fish) with friends one Saturday when a shark attacked him. He didn't see (not see) anything, but he felt (felt) a sudden pain in his leg. At first, he thought that his friends were playing (play) a prank on him. He turned (turn) around - but nobody was (be) behind him. Then he realised (realise) what had happened (happen).
Ответ: was fishing, didn't see, felt, were playing, turned, was, realised, had happened