1. what does he do at the office? What does he discuss at the office?
2. What lasts two hours? How many hours do our English lessons last?
3. Who gets home at five in the afternon? when do these students usually get home?
4. Who works at a new factory? where do his sisters work?whose sisters work at a new factory?
5. who is going to stay at the factory after work today? Where am I going to stay after work today? when am i going to stay at the factory?
6. Who lives a long way from the office?
7. who are discussing this question now? what are they discussing now? what are they doing now?