Задайте специальный и общий вопросы по предложениям:
1)He had washed his hands before he sat down to dinner
2)The watchmaker hadn't cleaned me watch by the time I came

1) Did he wash his hands before he sat down to dinner
What did he wash his hands before he sat down to dinner
When did he wash his hands
2) Has the watchmaker cleaned my watch by the time I came
What hasnt the watchmaker cleaned by the time I came
When has the watchmaker cleaned my watch