改几个句子（将被动语态改成主动语态）注意时态~
1.It is called a clavichord.
2.It was made in Germany in 1681.
3.Our clavichord is kept in the living room.
4.The instrument was bought by my grandfather many years ago.
5.Recently it was damaged by a visitor.
6.and two of the strings were broken.
7.Now we are not allowed to touch it.
8.It is being repaired by a friend of my father's.
注意时态 别说什么要自己作 我还是初一学生的,这是新概念2题目,所以不太会