1. The children are playing in the yard.
She thought the children were playing in the yard.
2. She made no mistakes in her dictation.
She was glad she had made no mistakes in her dictation.
3. He is painting a new picture.
We heard he was painting a new picture.
4. His new picture will be a masterpiece.
We were sure his new picture would be a masterpiece.
5. Have you done your homework?
Father asked Nick if he had done his homework.
6. Where are your friends?
Tom asked where my friends were.