Ответ:

Объяснение:

1 It had fallen off the wall.

2 They hadn't flown before.

3 It had changed a lot.

4 I hadn't heard it before.

5 She had arranged to do something else.

6 The film had already started.

7 We hadn't been there before.

8 I hadn't seen him for five years.

9 They had just had lunch.

10 He had never played before.