Read the grammar rules about must/mustn't and complete the rules with the verbs below.

You 1) must be quiet.
You mustn't touch.
(prohibition/you aren't allowed to).
b) Look at the mini-dialogues and complete the rules with the verbs below:
DURING YOUR VISIT TO LONDON:
You 1) must touch.
You 2) must pay at the ticket office.
Children 3) must be with an adult.
You 4) mustn't eat or drink in the museum.
You 5) mustn't leave by yourself.