Please open your books.
You mustn't talk.
You must be quiet.
Please raise your hand if you know the answer.
You can't eat or drink during lesson.
You can't walk round the classroom during lesson.
You shouldn't forget to do your homework.
You mustn't cheat during the test.
ogólnie to do każdego zdania jest kilka roznych opcji do wyboru ale tak jest poprawnie
mam nadzieję że pomogłam:)
