In the context of one of my teacher told me that he was going to have an operation and I need to send him a message after he had the operation to ask him something, is the following message appropriate according to the context? "Hello sir, I hope your path to recovery went well. I'm having school holidays next week. Can I take a rest in the holidays and start our next lesson on the first week of school?"

Yes, the message is appropriate for the context. It starts by expressing concern for your teacher's recovery, which shows empathy and consideration. Then, you proceed to ask about the possibility of taking a rest during the school holidays and resuming your lessons on the first week of school. Overall, the message is polite and respectful.

Yes, your message appears to be appropriate given the context. It begins with a polite and caring greeting, expressing your well wishes for your teacher's recovery. You then proceed to ask about the possibility of taking a rest during the school holidays and resuming the lessons on the first week of school. The message shows concern for your teacher's well-being while also addressing your own needs as a student.