Questions 1 to 5 are based on the following passage.
　　A call home can cost ￡1.37 a min
　　BRITISH tourists are still ripped off by mobile phone firms charging over the odds for “roaming” services, the European Commission has found.
　　Calls made or received on mobiles while abroad cost up to ￡1.37 a minute—or 19 times as much as domestic calls, a study revealed.
　　Users have to pay roaming charges when using a foreign network, under an agreement with their own operator.
　　Mobiles automatically switch to a local network when outside the UK.
　　Companies such as Vodafone and T-Mobile are accused of abusing their dominant position by charging high fees and passing them on to customers.
　　British operator Vodafone and T-Mobile’s parent company Deutsche Telekom are guilty of anti-competitive practices in Germany, the EC claims.
　　If found guilty, both could be fined millions of pounds for abusing their monopoly. Vodafone is appealing against earlier EC allegations that its British roaming rates are “unfair and excessive”.
　　Jonathan Morris, of What Mobile? magazine, said: “If people use their phone when away, they can rack up hundreds of pounds quickly. Making quick calls won’t help as calls are charged by the minute, not the second.”
　　Questions:
　　1．Mobile phone firms cheat British tourists by making them pay too much money for ______________.
　　2．Which mobile phone company is cheapest to call UK from Australia?
　　3．If found guilty, which two mobile phone firms could be fined millions of pounds for abusing their monopoly?
　　4．What are the European Commission’s allegations about Vodafone?
　　5．How will people be charged if they use their phone when away?