Wishing to encourage her young son's progress on the piano， a mother took her boy to a pianist's concert on a summer holiday evening． After they found their   （1）　　 ， the mother saw two friends in the hall and walked to   （2）　　   them．

    It was the boy's first time to come to the hall． He thought it was a good   （3）　_　   for him to explore the wonders of the concert hall． He   （4）　　   and walked around． He walked   （5）　　   a door marked "NO ADMITTANCE"（禁止入内）．

    When the hall lights dimmed （变暗） ， the   （6）　　   would begin． The mother returned to her seat and discovered that her son was   （7）　　． The mother was   （8）　_　   worried at that at the moment that tears （眼泪） were in her eyes．

    The concert began， and the lights focused on （聚焦于） the wonderful piano on stage． The mother was   （9）　　   to see her little boy sitting at the keyboard， playing the song Twinkle， Twinkle Little Star   （10）　　   he did at home．

    At that moment， the great pianist came， quickly moved to the piano and   （11）　_　   in the boy's ear， "Don't stop． Keep playing． " He leaned over （俯身） and began filling in a bass part （低音） with his left   （12）　　 ， then added a running obbligato （伴奏） with his right hand． They played the piano together   （13）　　． The old pianist and the young novice （初学者） changed a frightening situation into a wonderful creative experience． The audience （观众） stood up and    （14）　　   them．

    An artist's achievements and charm depend on not only his perfect skills   （15）　_　   his good qualities．

（1）A． desks	B． stage	C． seats	D． piano
（2）A． greet	B． feed	C． notice	D． search
（3）A． use	B． chance	C． season	D． culture
（4）A． flew	B． sat	C． fell	D． rose
（5）A． through	B． across	C． above	D． over
（6）A． film	B． concert	C． conversation	D． meeting
（7）A． sleepy	B． missing	C． tired	D． excited
（8）A． so	B． very	C． much	D． such
（9）A． serious	B． sad	C． patient	D． surprised
（10）A． when	B． if	C． as	D． before
（11）A． called	B． shouted	C． whispered	D． cried
（12）A． hand	B． shoulder	C． foot	D． leg
（13）A． badly	B． carelessly	C． terribly	D． happily
（14）A． fought with	B． laughed at	C． shouted at	D． cheered for
（15）A． or	B． but	C． and	D． so