Please help me!!!!!!!

не halp, а help

1) I had written exerciese before she came.

2) He had interviewed the man before she came.

3) We had not done the task by five o'clock.

4) You had cooked the dinner by that time.

5) They had exhibited my pictures by that time.


6) Had I learned the words by that time?

7) Had she prepared the report by the time they came?

8) Had we done the reseach by Sunday?

9) Had you read the book by that time?

10) Had they translated the text by that time?