1. I have already had some practice at the laboratory
2.I have just cleaned the flat.
3. John has just shaved.
4. They have already had a rest in the country
5. Ann has just turned off the gas.
6. The boy has already brushed his clothes, has not he?
7. I have just turned on the light.
8. His family have already listened to the seven o'clock news, haven't they?
9. Who has just had a bite?
10. What have you just done?
11. They have already stayed out of town for a fortnight
12. I have just looked through his article.
