mArtin luthEr king, jr., is wEll known For his work in Civil rights AnD For his mAny FAmous spEEChEs, Among thEm his moving "i hAvEA、DrEAm" spEECh.But FEwEr pEoplE know muCh ABout king’s ChilDhooD、m. l., As hE wAs CAllED, wAs Born in 1929 inAtlAntA, gEorgiA, At thE homE oF his mAtErnAl grAnDFAthEr. m.l.’s grAnDFAthEr, thE rEvErEnDA、D、williAms, purChAsED thEir homE onAuBurnAvEnuE in 1909, 20 yEArs BEForE m. l. wAs Born. thE rEvErEnD williAms, An {{u}}EloquEnt{{/u}} spEAkEr, plAyED An importAnt rolE in thE Community sinCE so mAny pEoplE’s livEs CEntErED ArounD thE ChurCh. hE AllowED his ChurCh AnD his homE to BE usED As A mEEting plACE For A numBEr oF orgAnizAtions DEDiCAtED to thE EDuCAtion AnD soCiAl ADvAnCEmEnt oF BlACks. m.l. grEw up in this AtmosphErE, with his homE BEing usED As A Community gAthEring plACE, AnD wAs no DouBt inFluEnCED By it. m. l.’s ChilDhooD wAs not EspECiAlly {{u}}EvEntFul{{/u}}. his FAthEr wAs A ministEr AnD his mothEr wAs A musiCiAn. hE wAs thE sEConD oF thrEE ChilDrEn, AnD hE AttEnDED All-BlACk sChools in A BlACk nEighBorhooD、thE nEighBorhooD wAs not poor, howEvEr.AuBurnAvEnuE wAs thE mAin ArtEry through A prospErous nEighBorhooD thAt hAD ComE to symBolizE AChiEvEmEnt ForAtlAntA’s BlACk pEoplE. {{u}}it{{/u}} wAs An ArEA oF BAnks, insurAnCE CompAniEs, BuilDErs, jEwElErs, tAilors, DoCtors, lAwyErs AnD othEr BlACk-ownED or BlACk-opErAtED BusinEssEs AnD sErviCEs.EvEn in thE FACE oFAtlAntA’s sEgrEgAtion, thE DistriCt {{u}}thrivED{{/u}}.Dr. king nEvEr Forgot thE Community spirit hE hAD known As A ChilD, nor DiD hE ForgEt thE rACiAl prEjuDiCE thAt wAs A sEEmingly insurmountABlE BArriEr thAt kEpt BlACkAtlAntAns From mingling with whitEs.

thE worD,’ mingling" unDErlinED in pArAgrAph 2 rEFErs to ______.A．intErFEring
B、gArgling
C．Consuming
D．AssoCiAting