Read the information and complete the examples

These are the rules.

Rules are things you must (not) or can(not) do.

We use "must" and "mustn't", "can" or "cannot" to talk about things we need to do because of the rules.

• must
• must not
• can
• cannot

I [ ] go to school every day. I [ ] be late.

I [ ] wear jeans to school. Students [ ] use mobile phones.