://:1.A)limitedB)unlimitedC)scarcityD)abundant2.A)wantB)problemC)wantsD)resources3.A)thoseB)someC)othersD)many4.A)themB)themselvesC)ourselvesD)ours5.A)expandB)extendsC)growsD)increase6.A)alwaysB)sometimesC)oftenD)never7.A)managementB)functionC)boardD)group)peopleB)economistsC)wayD)methods9.A)soB)greatC)suchD)suchan10.A)formB)studyC)meansD)source11.A)practicallyB)inpracticeC)inrealityD)practicably12.A)theB)/C)forD)with13.A)plentifulB)scarceC)abundantD)infullsupply14.A)theycanbeB)cantheybeC)theymustbeD)musttheybe15.A)areledtoB)leadsC)leadtoD)leadsto答案:ACACCDCDCBCCBBDTheWorldHealthOrganization1estimatesthataboutone-thirdofallpeopleareinfectedwithbacteriathatcausetuberculosis.Mosttimes,theinfectionremainsinactive.ButeachyearabouteightmillionpeopledevelopactivecasesofTB,usuallyintheir______1______.Twomillionpeopledie______2______it.Thediseasehas______3______withthespreadofAIDSanddrug-resistantformsoftuberculosis.Currenttreatmentstakeatleastsixmonths.Peoplehaveto______4______acombinationofseveralantibioticdrugsdaily.Butmanypeoplestop______5______theyfeelbetter.://)kidneysB)lungsC)bonesD)livers2.A)withB)withoutC)ofD)outof3.A)increasedB)decreasedC)changedD)disappeared4.A)makeB)takeC)tryD)test5.A)asifB)asthoughC)asfarasD)assoonas6.A)referB)applyC)leadD)amount7.A)effectiveB)ineffectiveC)expensiveD)inexpensive8.A)curedB)tocureC)beingcuredD)havingbeencured9.A)manyB)moreC)fewD)fewer10.A)providedB)introducedC)testedD)tempted11.A)bringaboutB)contributedtoC)promoteD)prevent12.A)increasesB)reductionsC)creationsD)collections13.A)developedB)inventedC)delayedD)refused14.A)easyB)uneasyC)sureD)unsure)withB)toC)ontoD)into答案:BCABDCAACCDBBCDPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithoutrealizingit.MostAmericans___A__1___outofthecountryandhavevery__B___2____e