Vous avez beau jeu = 1. (lit.) You have good cards. 2. (fig.) You have the advantage.
*La belle plume fait le bel oiseau = Fine feathers make fine birds.
Se mettre au beau = (of the weather) To clear up.
Jouer la belle = To play the rubber (or third game, to see which of the players is the conqueror).
Beaucoup
*Beaucoup de bruit pour rien = Much ado about nothing.
Beauté
La beauté ne se mange pas en salade = Beauty does not fill the larder; Prettiness makes no pottage.
Bec
Il m’a tenu le bec dans l’eau = He kept me in suspense.