[解析]
1. What / How about you?细节理解题.根据上文" I'm ready for it"可知,杰克说,自己准备好了.根据下文" I have no idea about it"可知,A说自己还不知道怎么办,故知此处问的是"你呢?",故填:What / How about you?
2. My favorite sport is football. / I like football best. 细节理解题.根据上文"What's your favorite sport"可知,杰克询问对方最喜欢什么运动,故知在此他要回答自己最喜欢什么.根据下文"Then, you can collect some information about football"可知, A最喜欢踢足球,故填:My favorite sport is football. / I like football best.
3. How can I collect the information?细节理解题. 根据上文""可知,根据下文"You can collect the information by reading newspapers and magazines"可知,杰克告诉对方可以通过读报、读杂志来搜集这方面的信息,故知此处问的是"我怎样来搜集信息?",故填:How can I collect the information?
4. I see. / OK. 细节理解题.根据上文"You can collect the information by reading newspapers and magazines, and you can also talk about the World Cup in Russia these days"可知,杰克告诉了对方搜集信息的方法(途径),故知此处要回答"知道了",故填:I see. / OK.
5. You're welcome./That's all right./That's OK./Not at all./ It's a/my pleasure./My pleasure. 细节理解题.根据上文"Thank you very much"可知,A 向杰克表示感谢,杰克应说"不用谢",故填:You're welcome./That's all right./That's OK./Not at all./ It's a/my pleasure./My pleasure.