Поставьте глагол в главном предложении в Past Indefinite и сделайте необходимые преобразования в придаточном предложении.

1. I think that she is at home. - I thought that she was at home. 2. We know that she is ill. - We knew that she was ill. 3. I hope that they knew about it. - I hoped that they had known about it. 4. I think that they were busy. - I thought that they had been busy. 5. We hope that they will help us to do this work. - We hoped that they would help us to do this work. 6. We think that we shall have our holidays in January. - We thought that we would have our holidays in January.