26.whatproblemareU.S.nationalparksfacedwith?[A]Declineofbusinessprofits[B]Inadequatecommercialization[C]Lackoftransportationservices[D]poorlymaintainedinfrastructure
27.Increasedprivatizationofthecampgroundsmay________.[A]spoilvisitorexperience[B]helppreservenature[C]bringoperationalpressure[D]boostvisitstoparks
28.Accordingtoparagraph5mostrespondentsinthesurveywould________.[A]gotothenationalparksonaregularbasis[B]advocateabiggerbudgetforthenationalparks[C]agreetopayextraforthenationalparks[D]supportthenationalparks’receivereforms
29.Thenationalparksarevaluableinthatthey_______________[A]leadthewayintourism[B]havehistoricalsignificance[C]sponsorresearchonclimate[D]provideanincomeforthelocals
30.Itcanbeconcludefromthetextthatthenationalparksystem[A]isabletocopewithstaffshortages[B]isabletomeetvisitor’demands[C]isinneedofanewpricingpolicy[D]isinneedofafundingincrease
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