French language Q&A Forum

I keep seeing "s'est" and such, but I don't know why it's used. I can't understand the meaning behind it, and I also see "s'est terminé" when terminer isn't a verb that uses etre when conjugated into passé composé.

 My instinct was to put a 'de' in front of 'differents' in this sentence. Can I do it?

I found that in ce. it stress on u a bit more.  especially ce sont. it sounds like suh sont. 

In the exercise entitled "A Book Lover," there is a phrase "...rien qu'en observant ses grands frères et sœurs." When I entered that spelling, the s's at the ends of "frère-" and "sœur-" were marked as incorrect even though they were present in the correct example.

In passing, if Damien indeed only had one brother and one sister, would we have to say 'son frère et sa sœur'?

Thanks a lot.

I would have expected devoir to be used here instead of avoir. Could someone clarify? Maybe I'm not understanding the tenses clearly. Thanks!