Must / Mustn´t exercise

4.-
a-4
b-1
c-6
d-5
e-3
f-2

5.-
1. can´t go
2. mustn´t eat
3. can use
4. mustn´t turn off
5. can play
6. can´t take
7. must tell

6.-
1. You can play skateboard in the parks.G
2. You can use a mobile phone on the buses.G
3. You can take the photos in the museum.S
4. You can´t draw graffiti on the walls.G
5. You can´t drive a car when you are 15.S
6. You mustn´t drop litter in the streets.G
7. You must recycle paper and plastic.G
8. You mustn´t smoke in a restaurants.G

8.-
1. Teachers can´t use the phone mobile phone in the clasroom
2. Teachers mustn´t hitting students
3. Teachers can´t eat in the classroom

4. You mustn´t sleep at ten o´clok
5. You can go to church
6. You mustn´t healthy eating