gEnErAlly spEAking, ABritish is wiDEly rEgArDED As A quiEt, shy AnD ConsErvAtivE pErson who is{{u}} (21) {{/u}}only Among thosE with whom hE is ACquAintED、whEn A strAngEr is At prEsEnt, hE oFtEn sEEms nErvous,{{u}} (22) {{/u}}EmBArrAssED、you hAvE to tAkE A CommutEr trAin Any morning or EvEning to {{u}} (23) {{/u}}thE truth oF this. sErious-looking BusinEssmEn AnD womEn sit rEADing thEir nEwspApErs or Dozing in A ComEr; hArDly AnyBoDy tAlks, sinCE to Do so woulD BE ConsiDErED quitE oFFEnsivE. {{u}} (24) {{/u}}, thErE is An unwrittEn But ClEArly unDErstooD CoDE oF BEhAvior whiCh,{{u}} (25) {{/u}}BrokEn, mAkEs thE oFFEnDEr immEDiAtEly thE oBjECt oF{{u}} (26) {{/u}}. it hAs BEEn known As A FACt thAt ABritish hAs A{{u}} (27) {{/u}}For thE DisCussion oF thEir wEAthEr AnD thAt, iF givEn A ChAnCE, hE will tAlk ABout it{{u}} (28) {{/u}}. somE pEoplE ArguE thAt it is BECAusE thEBritish wEAthEr sElDom{{u}} (29) {{/u}}ForECAst AnD hEnCE BEComEs A sourCE oF intErEst AnD{{u}} (30) {{/u}}to EvEryonE. this mAy BE so.{{u}} (31) {{/u}}ABritish CAnnot hAvE muCh{{u}} (32) {{/u}}in thE wEAthErmEn, who, AltEr promising FinE, sunny wEAthEr For thE Following DAy, ArE oFtEn provED wrong{{u}} (33) {{/u}}A ClouD ovEr thEAtlAntiC Brings rAiny wEAthEr to All DistriCts! thE mAn in thE strEEt sEEms to BE As ACCurAtE -- or As inACCurAtE -- As thE wEAthErmEn in his{{u}} (34) {{/u}}. ForEignErs mAy BE surprisED At thE numBEr oF rEFErEnCEs{{u}} (35) {{/u}}wEAthEr thAt thEBritish mAkE to EACh othEr in thE CoursE oF A singlE DAy. vEry oFtEn ConvErsAtionAl grEEtings ArE{{u}} (36) {{/u}}By CommEnts on thE wEAthEr. "niCE DAy, isn’t it " "BEAutiFul DAy!" mAy wEll BE hEArD instEAD oF "gooD morning, how ArE you "{{u}} (37) {{/u}}thE ForEignEr mAy ConsiDEr this ExAggErAtED AnD ComiC, it is worthwhilE pointing out thAt it CoulD BE usED to his ADvAntAgE.{{u}} (38) {{/u}}hE wAnts to stArt A ConvErsAtion with ABritish But is{{u}} (39) {{/u}}to know whErE to BEgin, hE CoulD Do wEll to mEntion thE stAtE oF thE wEAthEr. it is A sAlE suBjECt whiCh will{{u}} (40) {{/u}}An AnswEr From EvEn thE most rEsErvED oF thEBritish.

A．EvEn iF
BECAusE
C．iF
D．For