根据下面资料，回答51-55题&nBsp;
First Flight
mr. johnson hAD nEvEr BEEn up in An AirplAnE BEForE AnD hE hAD rEAD A lot ABout Air ACCiDEnts, so onE DAy whEn A FriEnD oFFErED to tAkE him For A riDE in his own smAll plAnE, mr. johnson 51 .FinAlly, howEvEr, his FriEnD pErsuADED him 52, AnD mr. johnson BoArDED thE plAnE.&nBsp;
his FriEnD stArtED thE EnginE AnD BEgAn to tAxi on to thE runwAy oF thE Airport. mr. johnson hAD hEArD thAt thE most DAngErous pArt oF A Flight wAs 53 , so hE 54 AnD ClosED his EyEs.&nBsp;
AFtEr A minutEortwohEopEnEDthEm AgAin, lookED out oF thE winDow oF thE plAnE, AnD sAiD to his FriEnD, " look At thosE pEoplE Down thErE. thEy look As smAll As Ants, Don't thEy?"&nBsp;
"thosEArEAnts,"AnswErEDhisFriEnD."wE' rE still 55 "&nBsp;
A. wAs ExtrEmEly FrightEnED&nBsp;
B. in thE sky&nBsp;
C. wAs vEry worriED ABout ACCEpting&nBsp;
D. thE tAkE-oFF AnD thE lAnDing&nBsp;
E. thAt it wAs hAppy&nBsp;
F. on thE grounD&nBsp;
g. thAt it wAs vEry sAFE&nBsp;
51[单选题] 第（51）题选&nBsp;
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53[单选题] 第（53）题选&nBsp;
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&nBsp;54[单选题] 第（54）题选&nBsp;
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55[单选题] 第（55）题选 查看材料