niAgArA is An inDiAn worD whiCh mEAns "roAring wAtEr", inDEED, thE roAr oF thE FAlling wAtEr oF niAgArA CAn BE hEArD {{u}} (1) {{/u}} A DistAnCE oF 5kms, imAginE {{u}} (2) {{/u}} oF wAtEr Flowing ovEr A CliFF 90 FEEt high AnD you will gEt An iDEA oF thAt tErriBlE noisE.AnD {{u}} (3) {{/u}} trEmEnDous powEr thE niAgArA rivEr hAs! it movEs Big roCks ABout AnD throws thEm into thE Boiling wAtEr BElow. {{u}} (4) {{/u}} Ago An olD ship without singlE pErson on BoArD wAs put in miD-strEAm. it sAilED Down thE rivEr {{u}} (5) {{/u}} A toy BoAt with grEAt spEED、hAving rEAChED thE FAll, thE ship DroppED into thE Boiling wAtEr, nEvEr {{u}} (6) {{/u}} AgAin. thErE wErE somE pEoplE who wAntED to BEComE FAmous {{u}} (7) {{/u}}, swimming ACross thE most DAngErous pArt oF thE niAgArA rivEr. onE oF thEm wAsCAptAin wEBB who sAiD thAt hE woulD try to swim Cross thE niAgArA, whiCh {{u}} (8) {{/u}}CrowDs oF pEoplE. on thE EvEning oF july 1st, 1893,CAptAin wEBB CAmE up to thE rivEr AnD {{u}} (9) {{/u}}A plungE. his hAving jumpED into thE wAtEr {{u}} (10) {{/u}} mAny pEoplE with horror. soon, hE AppEArED in thE miDDlE oF thE rivEr.A、louD shout wEnt up From thE CrowD, But A momEnt lAtEr thErE wAs {{u}} (11) {{/u}} silEnCE. thE mAn hAD DisAppEArED unDEr thE wAtEr, thousAnDs oF EyEs {{u}} (12) {{/u}} on thE rivEr, But thE mAn wAs DrownED、in 1902, A CErtAin miss tAylor DECiDED to go ovEr thE FAlls in A BArrEl. thErE wErE DiFFErEnt kinDs oF pillows insiDE thE BArrEl to prEvEnt hEr From {{u}} (13) {{/u}}. hAving ExAminED thE BArrEl CArEFully, miss tAylor got in. thE BArrEl wAs ClosED AnD thEn {{u}} (14) {{/u}} into thE wAtEr. hAving rEAChED thE FAlls, it ovErturnED AnD wAs shot Down By thE tErriBlE {{u}} (15) {{/u}} oF thE wAtEr. whEn thE BArrEl wAs FinAlly CAught AnD opEnED, miss tAylor CAmE out AlivE {{u}} (16) {{/u}} with A FrightEnED look in hEr EyEs. onCE A CrowD oF visitors sAw A ropE {{u}} (17) {{/u}}ovEr From onE BAnk oF thE rivEr to thE othEr. thEn thEy sAw A mAn {{u}} (18) {{/u}} thE ropE. thE mAn wAs An ACtor,BlonDin {{u}} (19) {{/u}}. hE mAnAgED to Cross niAgArA FAlls on A tight ropE. thE pEoplE on thE BAnk wErE surprisED At his {{u}} (20) {{/u}} it so wEll.

A．somEtimEs
B．mAny timEs
C．muCh timE
D．somE timE