Ответ:

1

3 was watching

4 was doing

2  

1 How did Anne break her leg

2 was riding

3 fell

4 landed

5 Did she go ...?

3

1 When did you see ...

2 I was doing ...

4

1 called

2 didn't answer

3 was jogging

1 Did you hear what ...

2 was riding  

3 jumped  

4 tried  

5 fell

6 wasn't