Hola Inma,
1) My answer was "disfrutamos de esta cena maravillosa" but it was marked wrong.
Can you, please, explain when the verb disfrutar needs the "de"?
2) "y hizo una salsa de guacamole muy rica": I'm not sure, but I thing it sould be e hizo, or am I wrong?
Un saludo
Ελισάβετ