5、tB.soC./()18.That'sinterestinggame.A.aB.anC、/()19.Letme______,please.A.playtennisB.playthetennisC.toplaytennis()20.“DoLucyandLilyhaveaniceroom?”“Yes,.”A.shedoB.shehasC.theydo()21.Don’tforget_____bringyourbookschoolnexttime.A.to;intheB.in;toC.to;to()22.Thepighasfour______. A.foot B.feet C