【题目】从方框内选择合适的句子完成对话。Teacher: Good morning!
Lisa: Good morning!
Teacher: Lisa, are these your books?
Teacher: And is this green pen his?
Lisa: No. it isn't.
Teacher: What about the dictionary?
Lisa: And the green pen is hers too.
Teacher: And the pencil?
Lisa: Yes, it is.
Lisa: You are welcome.
A. Thank you for your help.