1. Did Oleg write a long composition last week?
Yes, he did.
2. Did Oleg write a long or a short composition?
He wrote a long composition
3. What did Oleg write last week?
He wrote a composition.
4. Who wrote a long composition? - Oleg did.
Oleg wrote a long composition
5. Oleg wrote a long composition, didn't he? - Yes, he did.
1. Did Oleg write a long composition last week?
Yes, he did.
2. Did Oleg write a long or a short composition?
He wrote a long composition
3. What did Oleg write last week?
He wrote a composition.
4. Who wrote a long composition? - Oleg did.
Oleg wrote a long composition
5. Oleg wrote a long composition, didn't he? - Yes, he did.