Правильно употребить в скобках глаголов в Past Simple, Past Countiuos…

1. When Alison entered the house she saw that her son was playing with a ball which she had bought in the shop. 2. They arrived at the theatre. 3. When I came into her room, she was playing the piano which her father had bought.4. He wanted to impress her parents as he had not met them before. 5. Mother told me that she was planning fish soup and a chocolate mousse for dinner. 6. When we arrived, mother was going into the kitchen to do the last preparations for the meal.7. We wanted to know which way they had chosen.