{{B}}DirECtions: For EACh BlAnk in thE Following pAssAgE, thErE ArE Four ChoiCEs mArkEDA,B,
C、AnDD、ChoosE thE onE thAt is most suitABlE AnD mArk your AnswEr By BlACkEning thE CorrEsponDing lEttEr on thEAnswEr shEEt.{{/B}}

Dr. williAm C、stokoE, jr., wAs thE ChAirmAn oF thEEnglishDEpArtmEnt At gAllAuDEt univErsity. hE sAw thE wAy DEAF pEoplE CommuniCAtED AnD wAs ExtrEmEly{{u}} (21) {{/u}}. hE wAs A hEAring pErson, AnD signs oF thE DEAF wErE totAlly nEw to him. Dr. stokoE DECiDED to proposE A stuDy oF sign lAnguAgE. mAny othEr tEAChErs wErE not intErEstED, AnD thoughtDr. stokoE wAs{{u}} (22) {{/u}}to think ABout stuDying sign lAnguAgE.EvEn DEAF tEAChErs wErE not vEry intErEstED in thE projECt. howEvEr,Dr. stokoE DiD not givE up.{{u}} (23) {{/u}}, hE stArtED thE linguistiCs rEsEArCh progrAm in’1957. stokoE AnD his two DEAF AssistAnts, workED{{u}} (24) {{/u}}this projECt During thE summEr AnD AFtEr sChool. thE thrEE{{u}} (25) {{/u}}mADE Films oF DEAF pEoplE signing. thE DEAF pEoplE in thE Films DiD not unDErstAnD{{u}} (26) {{/u}}thE rEsEArCh wAs ABout AnD wErE just trying to BE niCE toDr. stokoE. mAny pEoplE thought thE wholE projECt wAs silly, But{{u}} (27) {{/u}}AgrEED withDr. stokoE in orDEr to plEAsE him. stokoE AnD his{{u}} (28) {{/u}}stuDiED thE Films oF signing. thEy{{u}} (29) {{/u}}thE Films AnD triED to sEE pAttErns in thE signs. thE rEsults oF thE rEsEArCh wErE{{u}} (30) {{/u}}: thE signs usED By All oF thE signErs{{u}} (31) {{/u}}CErtAin linguistiC rulEs. Dr. stokoE wAs thE First linguist to tEstAmEriCAn sign lAnguAgE{{u}} (32) {{/u}}A rEAl lAnguAgE. hE puBlishED thE{{u}} (33) {{/u}}in 1960,But not mAny pEoplE pAiD AttEntion to thE stuDy.Dr. stokoE wAs still{{u}} (34) {{/u}}—hE wAs thE only linguist who{{u}} (35) {{/u}}thAt sign lAnguAgE wAs morE thAn gEsturEs. hE knEw it wAs A lAnguAgE oF its own AnD not just AnothEr Form oFEnglish.

A．through
B．into
C、Along
D．on