Ответ:
You can't open your books
You can write with a pen or a pencil
You can take notes
You can't leave the classroom
You can't speak to each other
You can't show your answers to another student
You can ask your teacher for help
2 can't
3 can
4 can
5 can
6 can
7 can
8 can't
9 can
10 can't