根据下面对话中的情境,在每个空白处填入一个适当的语句,使对话恢复完整。

A: Hi, Jack. Our speech competition about sports is coming.

B: Yean. I'm ready for it. ?

A: I have no idea about it. Could you give me some good advice?

B: Well, that depends on your hobby. What's your favorite sport?

A:  .

B: Then, you should collect some information about football.

A: ？

B: You can collect the information by reading newspapers and magazines. And you can also talk about the World Cup in Russia these days.

A: .Thank you very much.

B: .Bye.

A: Bye-bye.