1.否定句:I didn't read a book last week.
问句: Did you read a book last week?
肯定回答:Yes,I did.
否定回答:No,I didn't.
2.否定句:She didn't visit her aunt yesterday.
问句: Did she visit her aunt yeaterday?
肯定回答:Yes,she did.
否定回答:No,she didn't.
3.否定句:There were not 60 students in our class last term.
问句: Were there 60 students in your class last term?
肯定回答:Yes,there were.
否定回答:No,there were not.