1. Does this engineer work at our office?
This engineer doesn't work at our office.
2 Does his wife go to the office in the morning?
His wife doesn't go to the office in the morning.
3Does her friend do English exercises at home?
Her friend doesn't do English exercises in the vorning.
4Is his name Pavlov?
His name isn't Pavlov.
5 Are they having dictation now?
Thy aren't having dictation now.