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If you want to see a play in London, you have to book your seat in advance(提前). You can buy your tickets at the box-office in the theatre or online. It is seldom that you will be lucky enough to get a ticket five minutes the play begins. If you go in a large party, it is not always possible for all of you sit in the same part of the theatre. are usually three parts in a theatre, stalls, dress circle, upper circle different prices for different parts. Seats in the front stalls are the most expensive of the three.