Were there earlier forms of the french flag and why was it changed

What command is suggested by le livre

Ihave to write about myself in french so here's what i got so far and just make sure i have no spelling mistakes (i'm just and beginner) je dois ecrire sur moi- meme en francias alors voici ce que j'ai (je suis juste un debutant) a propos de moi : - je m'apple (my name). je suis age de (my age). mon anniversaire tombe en (my birthday) .ma couler preferee est le rounge, le blanc, violet. je aime le sujet francias !

3. why is it important for a firefighter to know another language?