What do the sisgs mean? use must/mustn't no smoking 1. sorry! no animals thank you 2. keep dogs on leads 3. keep left 4. no cycling in the gardens clean up after your dog

You mustn't smoke.
You mustn't bring animals.
You must keep dogs on leads.
You must keep left. (on the road)
You mustn't cycle in the gardens.
You must clean up after your dog