1. Ivanov teaches us Biology (who, what).
Who teaches us Biology? What does Ivanov teach us?
2. They will translate this text next week (who, what, when).
Who will translate this text next week? What will they translate next week?
When will they translate this text ?
3. She always has dinner at home at 3 o'clock (who, what, when).
Who always has dinner at home at 3 o'clock? What does she always have at home at 3 o'clock? When does she always have dinner at home ?
4. His son goes to bed at 9 o'clock (whose, when).
Whose son goes to bed at 9 o'clock? When does his son go to bed?
5. Children study the English language at this school (who, what, where).
Who studies the English language at this school? What do children study at this school? Where do children study the English language ?