Change the sentences into the Passive Voice.

1.They congatulated him on his birthadau.

2.She will introduce me to her friend.

3.The doctor has prescribed me some medicines.

4.You must follow your mother's advice.

5.He is repairing his father's car now.

6.Our granny helps mother in the kitchen.

7.They were discussing their plans for the future.

8.We helped him to implement his plan.

9.They will adopt a child next month.

10.She takes good care of her little sister.

11.Aquarrel can't break up a real friendship.

12.She has written an application for this job.

13.They are writing invitations.

14.The quests were singing„La mulți ani”