补全对话（5小题，每小题2分，共10分）
A: Mary, you look unhappy. What happened?
B: 小题1:_______________________________.
A Oh,dear! What are your problems?
B: Well, I’m not good at sports. Some students often laugh at me in P. E. lessons.
A: 小题2:______________________________. I think you should do sports more often.
小题3:______________________________?
B: I made a friend on the Internet. He wants to meet me.
小题4:______________________________?
A: You shouldn’t go to meet him.
B: But he is always inviting me to meet him.
A: You could talk with your parents about it and go to meet him with your parents.
B: That’s a good idea. 小题5:_________________________.
A: You’re welcome.
缺失，牙槽嵴丰满，唇侧倒凹较大，拟行可摘局部义齿修复，
为基牙。