IV.
1.When you called me yesterday, I was helping my son do homework.
2.It is such a boring movie, I feel bored with it.
3.Tom didn't understand what did the teacher talk yesterday?
4.Linda and I was mentioning him when he came home.
5.My father called while my mother was going shopping last Sunday morning.
6.They was playing tennis when it rained.
7.The children was eating ice-creams when thay fell down.
8.Her story was interesting that I interested in listening to it again.