"It' s no use, Mum, "said Johnny．"I' m just no good at dancing．" "You' ve got to keep trying．Tonight will be 21 ,dear．Try a turn with that pretty Lisette．" Johnny 22 ．Every Saturday night used to be the best of the week．He and his parents went to the 23 at the Club, where his hero, Alcide, played the accordion(手风琴) with the band．But lately everything had changed．Now that Johnny was older, he was 24 to dance with a girl! 25 Johnny and his parents arrived at the Club, music had already started．Johnny got up his 26 to approach Lisette．"May I have this dance?" Johnny asked．"That's all right," said Lisette． Johnny struggled to keep up with Lisette' s 27 steps, but he was always one beat behind her．Then Johnny heard his friend Pierre say," Look! Johnny has two left feet!" Laughter burst from the crowd． Johnny 28 and ran outside, determined never to go to another dance． The next Saturday, Alcide drove to Johnny' s house for some potatoes．He happened to hear Johnny playing the accordion．Alcide' s eyes 29 "Bring that accordion and play some songs tonight,"Alcide said．Then he drove off, leaving Johnny staring open-mouthed 30 him． At the Club,Johnny scanned the crowd for Lisette and 31 her．The band played for a long time before Alcide said," Dear friends, I got a 32 for you tonight．Young Johnny is going to join us!" Trembling ,Johnny stepped up on the platform, his eyes on the floor．He began to play, and the band joined in behind him．When the song ended, he heard cheers．Johnny kept playing until the dance was 33 ．" You did a fine job tonight．Play with us again next Saturday night," Alcide said．"Yes, sir!" said Johnny． 34 he went outside, Johnny saw Lisette and her friends near the door．Lisette stepped forward, smiling," You played really good tonight!" she said． "Thank you," Johnny blushed (脸红)．As he walked on, Pierre 35 moved out of the way for him to pass． Johnny patted his accordion．Come to think of it, in his whole life, he had never once seen Alcide out on the dance floor． 第（22）题答案
量性研究和质性研究的分类依据是()