We may give food to animals in the zoo.
We must not push other people in the zoo.
We must not pull animal's tails in the zoo.
We must not catch birds and wild animals in the zoo.
We may take pictures of animals in the zoo.
We must not throw different things to animals in the zoo.
We must not throw rubbish in the zoo.
We may walk in the zoo.
We must not cry loudly in the zoo.
We may look at wild animals in the zoo.