Write sentences using already or just. Example : Don39;t forget to

1. Dont forget to take your puppy for a walk. - I have just taken it for a walk.
2. Shall I help you with you homework? - I have already done my homework.
3. Dont forget to clean the parrots cage. - I have just cleaned the parrots cage.
4. Why dont you join the Zoological Society? - I have already joined the Zoological Society.
5. Would you like to buy a good watchdog? - I have already bought a good watchdog.