Have to/don't have to

1  Choose the correct option in the sentences.

In school, you ... be on time for lessons

When you play sport, you ... wear the wrong clothes.

At break times, you ...go outside if the weather is good.

If the Head Teacher comes into your class, you ... stand up.

In the school library, you .... work very quietly.

 At lunchtime, you..... eat in the school cafeteria – you can also eat outside.

In science experiments, you .... do silly things with the chemicals and equipment.

2  Complete the text with have to, don’t have to or mustn’t.

In my country, you ⁰ don’t have to take off your shoes before you go into someone’s house. It’s very relaxed so you ¹ ____________________ wait for the person you are visiting, your host, to ask you to sit down – you just do it!

You ² ____________________ take something for your host, though, usually a box of chocolates or some flowers.

You ³ ____________________ take them anything that’s very expensive, though – it’s really not polite if you do.

You ⁴ ____________________ say nice things about their house, but they usually like it if you do!

In some countries, you ⁵ ____________________ eat all of the food on your plate – it’s OK if you leave some.

In my country, though, you ⁶ ____________________ do that – it’s rude if you leave anything that you can’t eat.

Meals there are usually quite short and afterwards you ⁷ ____________________ wash your hands.

After that, you ⁸ ____________________ do anything in particular – you can just relax and chat together.