Teacher and Student.
Teacher: Jack, why aren't you listening?
Jack: But, teacher, I'm listening.
Teacher: If you were listening, tell me what I said just now.
Jack: You said, "Jack, why aren't you listening?"
杰克，你为什么不认真听讲？
老师：杰克，你为什么不认真听讲？
杰克：老师，我正在听课呀！
老师：如果你刚才在听课，那告诉我刚才我说的什么。
杰克：您说的是：“杰克，你为什么不认真听讲？”