. Why didn’t they help him?
→ Why wasn’t he helped?

2. How many games has the team played?
→ How many games have been played by the team?

3. Where do people speak English?
→ Where is English spoken?

4. Who are they keeping in the kitchen?
→ Who are being kept in the kitchen?

5. How can they open this safe?
→ How can this safe be opened?

6. What book are people reading this year?
→ What book are being read this year?

7. How did the police find the last man?
→ How was the last man found by the police?

8. Who looks after the children for you?
→ By whom are the children looked after?

9. How long have they waited for the doctor?
→ How long has the doctor been waited for?

10. What time can the boys hand in their papers?
→ What time can the boy’s papers be handed in?

11. Who lends you this book?
→ By whom is this book lent to you?