What must you do or not do?
You must finish your homework before class
What must you do or not do?
You must turn on your camera and show your full face
What must you do or not do?
You must be on time and be happy
What must you do or not do?
You must only go out once
What must you do or not do?
You must use magic words
What must you do or not do?
You must not chat with your friends
What must you do or not do?
You must have your books and pens ready
What must you do or not do?
You must participate in class with Mr. Huy
What must you do or not do?
You must not eat or drink during class
What must you do or not do?
You must listen/must not interrupt when teacher is talking