change the sentences into the negative and interrogative forms
1. My brother is reading a book by To Hoai.
2. She was 13 last month.
3. Liz bought many souvenirs in Ho Chi Minh city.
4. There were his friend.
5. I was very tired after the trip.
6. My father visited Hue last week.
1, My brother isn't reading a book by To Hoai.
Is my brother reading a book by To Hoai?
2, She wasn't 13 last month.
Was she 13 last month ?
3, Liz didn't buy many souvenirs in Ho Chi Minh city.
Did Liz buy many souvenirs in Ho Chi Minh city ?
4, There weren't his friend.
Were there his friend?
5, I wasn't very tired after the trip.
Were you very tired after the trip ?
6, My father didn't visit Hue last week.
Did your father visit Hue last week ?