20. Use the information you learnt in this unit to write an email in reply to your friend Alice. In you email, you should:

• say what activities Alice can do to stay healthy.
• include types of healthy activities and ways to relax.
• say why it is important to stay healthy.
• use should / shouldn’t/should not/ have to / don’t have to / do not have to.
• write 80-100 words.

21. In pairs, compare your emails. What vocabulary and grammar does your partner use?

How can you improve your partner’s email?