10 предложений "что должны и не должны делать ученики в школе" (используя глаголы should и must)

Students must listen to their teachers. Students should not talk during lectures while teachers are talking. Students must turn off their phones. Student should respect their teachers. Students must do their homework. Students must be interested during a lecture. Students should ask questions after a lecture. Students should not plagiarize. Student must not bring anything illegal to their schools. Students should be polite.