Hi !!
which body part hurts, using the expression taught in this lesson ?
Unfortunately I have no ideas what was taught on the lesson.
1- Si Paul et Jacques regardent la télé tout l'après-midi, évidemment ils auront mal aux yeux. (futur tense) (si + present ==> futur)
(If Paul and Jacques watch the TV all afternoon, their eyes will hurt.)
2- Quand Isabelle et moi jouons au tennis pendant 3 heures, nous avons mal au bras.
When Isabelle and I are playing tennis for three hours, our arms hurt
or
nous sommes essoufflé(e)s = we are breathless
nous avons mal aux jambes = our legs hurt
hope it will help :)