Questions about Spanish, please help~~
1. Mientras dure-dura la guerra no puedo volver a mi país.
which one to choose, in this sentence? If one can't be used, why? Please explain it from the grammar perspectives.
2. Piense en nosotros cuando necesite hacer reformas en su casa.
What does this sentence mean?
3. Le dijo que se callara.
He said to him to be quiet?