bonsoir !
2- When I arrived on the beach , I saw dolphins. They were jumping off the sea
3- When........on the beach, I saw people. They were surfing (the waves)
pas obligé = the waves
4- When......., I saw swimmers (ou "people) . They were swimming crawl
6- While I was scubadiving, I saw a diver. He was taking pictures.
7- While I was scubadiving, I saw a sea turtle. She/it was eating a fish. (je vois une tortue, mais j'suis pas sûr ^^) dis-moi si je me trompe ..
8- While I was scubadiving, I saw a diver. He was playing with a dolphin.
bonne journée
