ex. 7.
Don't run in the corridors.
Don't forget your bag.
Do your homework.
Don't be late.
Look after your things.
Keep your classroom clean.
Don't bring food in the classroom.
ex.8.
1. Smile for the camera.
2. Brush your teeth.
3. Let's take this road.
4. Put here your rubbish.
5. Listen carefully to your teacher.
6. Don't eat quickly.
7. When you see this sign stop.
