在横线上填入适当的句子完成对话.
A: Excuse me．1．____________．
B: No,I'm not．I'm Mike's brother．
A: Hey,I'm Sally．2．_____________
B: I'm Paul．
A: 3．____________
B: Nice to meet you,too．
A: 4．___________
B: He is in his school sports club．
A: 5．____________．
B: Yes,he does．He plays sports in the sports club every day．
