1. I met somebody. - Who did you meet?

2. Harry arrived. - What time did Harry arrive?

3. I saw somebody. - Who did you see?

4. They wanted something. - What did they want?

5. The meeting finished. - What time did the meeting end?

6. Pet went home early. - Why did she go home early?

7. We had dinner. - What was for dinner?

8. It cost a lot of money. - How much money there was?

Вроде так)