Decide if the following statement(s) are grammatically correct or incorrect. auquel viens-tu? correct incorrect

Remplace les mots souligne par un pronom personnel tonique. 1. il joue au tennis avec son cousin. 2. je prepare une pizza pour mes enfants. 3. elle va a la salle de sport avec camille et justine. 4. elle sort sans son frere. 5. tu penses toujours a lucie. 6. vous parlez de guillaume? the ones in capital letters are the ones i have to replace.

Could anybody translate this into french i would be grateful: imagine being on top of the great wall of china meating all these new people seeing how the locals live.and how's your holiday going in frence? i hope everything is fine,see you soon.

Explain what has to happen when you use être instead of avoir for the formation of the passé composé? il an english explanation with steps if possible