These sentences are good? 1 )avant qu'ils visitent à quelqu'un, ils doivent acheter un cadeau 2)après qu'ils avoir manger, disaient merci

Any french speakers? could someone check if my grammar is correct? my text: ma visite au zoo se passe bien. c’est très intéressant. ii y a les ours, les éléphants, les lions, les singes, les tigres, et les canards. les ours dorment. les singes sauter beaucoup. les tigres courent vite. les marchent canards. what i was it to say in english: my visit to the zoo is going good. it is very interesting. there are bears, elephants, lions, monkeys, tigers, and ducks. the bears sleep. the monkeys jump a lot. the tigers run fast. the ducks walk.

Do we say "jouer aux jeux videos" or "jouer a des jeux video"

Translate the following sentences into french; the colors in the flag represent liberty and equality, and blue and red are also the traditional colors of paris.