请将下列句子改成被动语态。
1.We call it a clavichord.
2.Someone made it in Germany in 1681.
3.We keep our clavichord in the living room.
4.My grandfather bought the instrument many years ago.
5.Recently a visitor damaged it...
6.She struck the keys too hard and broke two of the strings.
7.This shocked my father.
8.Now he doer not allow us to touch it.
9.A friend of my father's of my father's is repairing it.