根据短文内容回答问题。

A reader from Manchester writes：

Dear Julie,

　　My question is－what is Britain's favourite sport? My dad says it's football but I think he's wrong．I think it's tennis．Who's right?

　　It's not an easy question to answer．Do you mean favourite sport for people to play(participant sport)or for people to watch(spectator sport)?The difference is important．Every year．four million people in Britain go fishing but every week．fifteen million watch football on TV．

　　I telephoned the Sports Council in London and asked then the question．

　　It's difficult to say which spectator sport is Britain's favourite．There's football, of course, but the tennis Championships at Wimbledon are very popular too, and don't forget the Olympics, cricket and horse-racing．

　　So I can't really answer the question about spectator sports．

　　But the question about favourite participant sport is easy．The answer is surprising．It isn't football or tennis or any games with a ball．To give you a clue, it begins with“w”, it's cheap, there's no special equipment and everybody in Britain does it．The answer is walking．And the second favourite? Swimming．

1．What is the story talking about?

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2．Is the question from Manchester to Julie?

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3．How many people in Britain watch football on TV every week?

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4．Where are the Tennis Championships held?

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5．What's Britain's favourite participant sport?

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