fais ce qu'on te dit
You'd better do as you're told.
Tu ferais mieux de faire ce qu’on te dit.
You'll have to do as you're told, Peregrin Took.
Vous devrez faire ce qu’on vous dit, Peregrin Touque.
— The Lord of the Rings: The Return of the King (2003)
You just have to do as you're told.
Tu n’as qu’à faire ce qu’on te dit.
I wish you would do as you're told.
J’aimerais que tu fasses ce qu’on te dit.
Tu feras ce qu’on te dira.
As long as you're living under this roof, you'll do as you're told.
Tant que tu vivras sous ce toit, tu feras ce qu’on te dira.
— The 400 Blows (1959)