"He reads the menu."
Translation:Il lit le menu.
Lisons is for the nous form. This is the "il" form, which is conjugated as <<lit>>
Il /elle / on lit and nous lisons. See lire conjugated here:
This answer is incorrect! "Le menu" is a set menu at a cafe or restaurant, while "La Carte" is the equivalent of the English word for "menu".
"La carte" may be the more commonly used term, but "le menu" is also perfectly correct.
'Nous' lisons 'Vous' lisent 'Il/Elle' lit
(May be incorrect, pls cross-check)
Hope that helps :D