Work in pairs. Practise mini-dialogues using the key phrases.
Ex.7

1 You should get dressed - Wait i  am chatting on the internet.

2 Jim make you bed and go to sleep - I listen music to in my mp3 player.

3 Help me, Dad, with the shopping - Wait, son , i talking  on my mobile.

4  Go to bad, quickly - Okey/ i write an email.