IfyouwanttobecertainofseeingaplayinLondon,youhavetobookyourseatinadvance.Youcanbuyyourticketseitheratatheateritshelf.Itisveryrarethatyouwillbeluckyenoughtogetaticketfiveminutesbeforetheplaybegins.Ifyou

　　IfyouwanttobecertainofseeingaplayinLondon,youhavetobookyourseatinadvance.Youcanbuyyourticketseitheratatheateritshelf.Itisveryrarethatyouwillbeluckyenoughtogetaticketfiveminutesbeforetheplaybegins.Ifyougoinalargeparty,itisnotalwayspossibleforalltositinthesamepartofthetheater.Somemaybeluckytositinthestalls,othersinthedresscircle,andsadly,somemayhavetositintheuppercircle.Theseseatsaretheleastexensiveofthethree.Seatsinaboxorfrontstallsarethemostecpensive.

　　()It'stheworsttositintheuppercircleinatheater

　　（）inLondon,youhavetobuyticketsatthesametimeyougotoseeaplay

　　()itiseasytogetaticketsfiveminutesbeforetheplaybegins

　　()youandyourfriendscanalawayssittogetherwhenyouarewatchingaplay