完形填空
题干:Whenvisitingaperson'sprivatehome,whetherforbusinessor(1)reasons,weshouldtimethecallwithdueconsiderationforourhost'sconvenience.Ofcourse,wearenotconcernedwiththisaspectwhenourvisitisin(2)toapreciseinvitation.Onless(3)occasionsitwouldbeunreasonabletoexpectafriendtoreceiveand(4)uswhen,forexample,amealisbeingpreparedoris(5)progress.Also,visitsmadeintheearlymorningorlateatnightarerightlyregardedas(6).Muchdiscretioniscalled(7)intimingthekindofinformalvisitwhichwecall"just(8)in".(9)onthedoor(normallythefrontone)orringthebelldistinctlyenoughtobeheard.(10)theloudopen-uporelseknock(11)couldmakethewholefamilyfeartheyareabouttobearrested.Itisimportanttogivetheperson(12)ampletimetocomefromthefarthestpartsofthehouse(13)youknockorringasecondtime.Whentheladyofthehouseopensthedoor,greetherbyraisingyourhatand(14)herthetimeoftheday.Inresponsetoyour(15)shemaysay,"I'msorry,myhusband'snot(16)."Youmay,infact,haveseenhisheelsdisappearingaroundtheendtothecorridor,butthatfactgivesyou(17)reasonfordoubtingthehonestyofhisever-watchfulwife.Itistakenfor(18)that"Sorry,notathome"canmeanoneoftwothings:eitherthatthepersonrequestedis(19)awayatthetime,orthat,(20)present,hedoesnotwishtoseeyou.
题目:(8)