英语阅读理解~Itisoftendifficultforamantobequitesurewhattax(税)heoughttopaytothegovernmentbecauseitdepends.nsomanydifferentthings：whetherthemanismarried；howmanychildrenhehas；whetherhesupportsanyrelati

　　英语阅读理解~

　　Itisoftendifficultforamantobequitesurewhattax(税)heoughttopaytothegovernmentbecauseitdepends.nsomanydifferentthings：whetherthemanismarried；howmanychildrenhehas；whetherhesupportsanyrelations：howmanyheearns；howmuchinteresthereceives；howmuchhehasspentonhishouseduringtheyear,andsoonandsoforth．Allthismakesitdifficulttodecideexactlyhowmuchthetaxis．

　　Therewasacertainartistwhowasalwaysverycarefultopaytheproperamount．

　　Oneyear,afterpostinghischeckasusual,hebegantowonderifhehadpaidenough,andafteralotofwork,withapencilandpaper,decidedthathehadnot．Hebelievedthatheowedthegovernmentsomething.

　　Hewasjustwritinganotherchecktosendtothetax-collectorwhenthepostmandroppedaletterintotheboxatthefrontdoor．Openingit,theartistwassurprisedtofindinsideitacheckforfivepoundsfromthetax-collector.Theofficialexplainedthattoomuchhadbeenpaid,andthatthereforethedifferencewasnowreturnedtothetaxpayer．

　　16．Accordingtothepassage,todecidetheexactamountoftaxtobepaidis.

　　A．simpleB．easyC．difficultD．interesting

　　17．Itismentionedinthepassage,thatonehastopaytaxaccordingto.

　　A．howmucheducationonehasreceived

　　B．whetheroneissingleormarried

　　C．howoldone’schildrenare

　　D．whereonelives

　　18．Theword“proper”inthefirstlineofthesecondparagraphmeans.

　　A．smallB．bigC．rightD．wrong

　　19．Afteralotofwork,theartistthoughtthathehadpaidthegovernment.

　　A．1esstaxthanheshouldhaveB．moretaxthanheshouldhave

　　C．asmuchtaxususualD．justenoughtax

　　20．Whydidthetax-collectorsendalettertotheartist?

　　A．Tosendhimanewtaxform．

　　B．Toreturnthemoneyover-paid

　　C．Toremindhimofpayingthetax．

　　D．Toexplaintherulesoftax-paying．