1. While Charles was reading a book my mother was preparing dinner.
2.Why do you you write an essay when Darius drew the exam?
3.Tom did not come to school even when you you were there.
4.Yesterday when I woke up I realized that they were not there.
5.One day, Basia went for a walk when he suddenly saw a big dog.
6.Then realized that he had never seen such a great dog never before.
7.Before we had time to do anything a dog has attacked her.
8.Basia lay on the ground and cried terribly when he ran Tom.
9.He startled the dog, the dog barking before he has stopped his ear.