听下面一段较长对话,回答以下小题。
15. What is the present condition of hotline like today?
16. What is the purpose of starting the hotline for teenagers?
A.To gain the belief of teenagers. |
B.To make teenagers study hard. |
C.To protect teenagers' rights. |
17. What does the woman think of the hotline for teenagers?
A.It won't last long. | B.It will be useful. | C.It will be of no use to teenagers. |