将下列句子翻译成中文Haveweevermetbefore?Wehavealreadypreparedforthepartyforaweek.Whohaveyoumetattheparty?Mysisterhassenthimthreelettersbypost.Ihavebeentothetoilet.Howlonghaveyoustayedhere?Ourteacherhasalreadycorrectedourhomework.Hehasalreadytakenawaythekeytothecar.Haveyougivenyouroldbooksaway?Mylittlebrotherhasgonetobed.Haveyoumetthedentist?Theyhavecooperatedwitheachotherforfiveyears.Mygrandpahasgonetotheparkbybus.Hasshealreadyfiledallthepapersforherboss?Thelittlechildhasdrawnfivepicturesthisweek.Chinahasproducedmanyspaceships.Mysisterhasspreadaclothonthetableafterdinner.Whathavehadwithyourfamilythisevening?Wherehasthefootballplayertransferredfromthatclub?Theenemyhasalreadywithdrawn.Youcan’tcatchthetrain.Becauseithasalreadyleft.Theteacherhasconfusedhisstudentsbyhisdifficultquestionsduringtheclass.Myangerhasalreadydisappeared.Ihaven’tfinisheddoingmyhomeworkyet.WhohasleftforScotlandbyair?Theboathasdriftedtotheothersideoftheriver.Whohaveyoumetinthestreet?Howmuchwaterhasthepatientdrunk?Youhavemademanymistakesinyourhomework.Howmanybookshavereadduringthesummerholiday?Theflowershavewitheredforthecoldweather.Hasyourfathercompletedhisworkyet?Ihavealreadysprinkledwateronthefloor.Thecoalhasalreadyflamed.Havetheyhadawalkintheparkforalongtime?Theyhavespiedontheenemyforalongtime.Wherehasyourmotherstoredyourwintercoats?Thenewteacherhasintroducedhimselftousatclass.Thenewroadhasconnectedthetwovillages.IhavelearntEnglishatBeijingChildren’sPalaceforthreeyears.Howlonghavetheycommunicatedwitheachother?Ihaveknownhimfortwentyyears.Ithasalreadybeendark.Wehavecorrespondedwitheachotherformanyyears;butIhaven’tmethimyet.Whatcolourhasyourfatherpaintedthewallsofthelivingroom?Themanagerhasdismissedtheclerkbecauseofhisdishonest.Havetheylitthedampwoodyet?Thethiefhasrunaway.Humanbeingshavealreadyinventedlotsofthingsforthemodernlife.Mylittlehasdestroyedtheradio.Whathaveyouheardfromhim?Hashetoldyouthetruth?Ihavealreadyscrapedthepaintfromthedoor.Mybrotherhasb