Did they go swimming yesterday?
No, they didn't
Did they go fishing last summer?
Yes, they did
Did they have a picnic last Sunday?
Yes, they did
Did she study for the exam?
Yes, she did
Did they ride their bikes?
Yes, they did
Did the dog sleep all the morning?
Yes, it did
Did they play frisbee during the holidays?
Yes, they did
Did she have breakfast this morning?
Yes, she did
Did they play football last weekend?
No, they didn't
Did the boy listen to music last night?
No, he didn't
Did they play cards yesterday?
No, they didn't