Ex1 We visited the National Park eleven years ago and the guide explained that the seals were in danger of becoming extinct. But five years ago when we came back he said that the situation was much better.
Ex2 When did you go to the Niagara Falls?
When did your sister got a job in New York?
How long did he sky?
How long did she sleep?
Ex3 Bein er.. c'est t'as vie du coup je peux pas vraiment t'aider haha ;)
