French

which one is correct?

(just worry about the first part)

J’aurais besoin d’une idée pour une histoire, qui incorpore une allumette dans l’histoire. merci

Any french speakers? i need some . how would i say 'my oldest brother is very tall, interesting, and good at drawinng.' in french? would it be: mon (i don't know the french word for oldest) frère est très grand, intéressant, et bon à dessin. also, how would i say 'my dad is good at his work' in french?

Complete the sentences with the correct possessive adjective: mon, ma, mes, ton, ta, tes, son, sa, ses, notre, nos, votre, vos, leur, or leurs. j’aime bureau. (my)