Our head teacher is ill. We can't have classes for two weeks. How should we say hello?

Dear head teacher: Although we always make you angry, you always forgive us with a tolerant heart. You can rest assured that we will work and study hard during the two weeks you leave, so please rest assured that we will wait for you to come back! I wish you a speedy recovery (visit some class cadres yourself, and you'd better buy some gifts and fruits)