1.The children didn't have a good time in the park.
Did the children have a good time in the park
Where did the children have a good time
2.There weren't about nine hundred people at the concert.
Were there about nine hundred people at the concert
对 about nined hundred 提问：How many people were there at the concert
3.Ann didn't do her homework yesterday evening.
Did Ann do her homework yesterday evening
What did Ann do yesterday evening
4.Last week I didn't read an English book.
Did you read an English book last week
What did you do last week
不明白的再问哟,请及时采纳,多谢!