根据下面的对话情景,在每个空白处填上一个适当的句子,使对话的意思连贯、完整。
A: Hello, Nina! I haven't seen you for two weeks.
B: I just came back from Qingdao.
A: Did you go there for vacation?
B: No, for training. I joined a football team last month.
A: That's the news to me.
B: No, but now, I'm interested in all sports especially football.
A: You look much healthier than before.
B: Yes, I always felt awful in the past. But now,
A: That's because you've got enough exercise.
B: I think so. Exercise helps me to keep fit.
A:
B: I play football three times a week.
A: I often have a headache these days.
B: Have you done any exercise?
A: No. I haven't done any exercise since I got my computer.
B: You shouldn't spend too much time in front of your computer. Why don't you go and play football with me?
A: That's a good idea!