Question

Answer 1

had eaten

Had you finished 

had bought

had she done

had not made

had written

had wanted

Had they invested 

had not done 

had been made 

had already eaten 

Had Tom chosen 

had driven 

had understood 

had not told 

had purchased

Answer 2

1 had eaten

2 Had you finished

3 had bought

4 had she done

5 hadn't made

6 had written

7 had wanted

8 Had they invested

9 hadn't done

10 had been made

11 had already eaten

12 Had Tom chosen

13 had driven

14 had understood

15 hadn't told

16 had purchased