Look at these signs. What do they mean? Where can you see these signs? Talk about these signs with your classmate using mustn't: at the river,in the wood,at the lake,inthe street,in a shop,in a theme park,in a cinema,at the airport,in a theatre.

You mustnt set a fire in the wood. You mustnt take your dog in the airport. You mustnt eat an ice cream in the theatre. You mustnt swim in the river. You mustnt drive in this street. You musnt roller skate in the Park. You musnt drink water from the lake.