in EvEry CultivAtED lAnguAgE thErE ArE two grEAt ClAssEs oF worDs, whiCh mAkE up thE wholE voCABulAry. First, thErE ArE thosE worDs{{u}} (56) {{/u}}whiCh wE BEComE FAmiliAr in DAily ConvErsAtion, whiCh wE{{u}} (57) {{/u}}, thAt is to sAy, From thE{{u}} (58) {{/u}}oF our own FAmily AnD From our FriEnDs, AnD{{u}} (59) {{/u}}wE shoulD know AnD usE{{u}} (60) {{/u}}wE CoulD not rEAD or writE. thEy{{u}} (61) {{/u}}thE Common things oF liFE with All thE pEoplE who{{u}} (62) {{/u}}thE lAnguAgE. suCh worDs mAy BE CAllED "populAr", sinCE thEy BElong to thE pEoplE {{u}} (63) {{/u}}AnD ArE not ExCluDED{{u}} (64) {{/u}}A limitED ClAss. on thE othEr hAnD, our lAnguAgE{{u}} (65) {{/u}}A lArgE numBEr oF worDs whiCh ArE CompArAtivEly{{u}} (66) {{/u}}usED in orDinAry ConvErsAtion. thEir mEAnings ArE known to EvEry EDuCAtED pErson, But thErE is littlE{{u}} (67) {{/u}}to usE thEm At homE or in thE mArkEtplACE. our{{u}} (68) {{/u}} ACquAintAnCE (熟悉) with thEm ComEs not From our mothEr’s{{u}} (69) {{/u}}or From thE tAlk oF our sChoolmAtEs, {{u}} (70) {{/u}}From Books thAt wE rEAD, lECturEs thAt wE{{u}} (71) {{/u}}, or thE morE {{u}} (72) {{/u}}ConvErsAtion oF highly EDuCAtED spEAkErs who ArE DisCussing somE pArtiCulAr{{u}} (73) {{/u}} in A stylE propErly highEr ABovE thE hABituAl{{u}} (74) {{/u}}oF EvEryDAy liFE. suCh worDs ArE CAllED "lEArnED", AnD thE{{u}} (75) {{/u}}BEtwEEn thEm AnD thE "populAr" worDs is oF grEAt importAnCE to A right unDErstAnDing oF lAnguAgE stuDy proCEss.

A．At
B．with
C．By
D．through