1.The children had a good time in the park.
The children didn't have a good time in the park.
Did the children have a good time in the park?
Yes,they did./No,they didn't.
2.There were about nine hundred people at the concert.
There weren't about nine hundred people at the concert.
Were there about nine hundred people at the concert?
Yes,there were./No,there weren't.
3.There was only one problem.
There wasn't only one problem.
Was there only one problem?
Yes,there was./No,there wasn't.
4.Ann did her homework yesterday evening.
Ann didn't do her homework yesterday evening.
Did Ann do her homework yesterday evening?
Yes,she did./No,she didn't.
5.Last week I read an English book.
Last week I didn't read an English book.
Did I read an English book last week?
Yes,I did./No,I didn't.
6.My brother was in the park just now.
My brother wasn't in the park just now.
Was my brother in the park just now?
Yes,he was./No,he wasn't.
7.She had some bread for lunch today.
She didn't have some bread for lunch today.
Did she have some bread for lunch today?
Yes,she did./No,she didn't.
8.They read English last night.
They didn't read English last night.
Did they read English last night?
Yes,they did./No,they didn't.