6 класс английский. Помогите пожалуйста. Буду благодарна, спасибо

1 I went to see my friend after I had had dinner.

2 I watched TV after I had done my homework.

3 They went home after my mum had come.

4 He phoned me after he had finished work.

5 She went to dance after she had cleaned the room.

6 We wrote a composition after we had read the book.

7 They rebuilt the house after they had returned from Australia.

8 We went for a walk after we had gone shopping.