The best known and 46 of all our many Christmas songs "Silent Night" was written in Oberndorf, a tiny village in Bavarian mountains. 47 Christmas Eve, 1818, Oberndorf had been 48 by a sever snowstorm, but 49 the inhabitants cheerfully prepared for the Christmas festivities. Then they discovered, to their 50__, that the organ had broken 51 A village school and church organist knew how unhappy the people would be, for music was the 52 of all their celebration. So he went to the assistant priest(牧师) and suggested that the priest 53 a special song for the Christmas celebration that should be sung without 54 preparation. The priest 55 to do his best. Towards evening he went 56 the school with the lovely words of the song "Silent Night”. Then the school composed a melody (曲调) to 57 the words. On Christmas morning, the beautiful carol (颂歌) was sung 58 the first time. A guitar was the 59 accompaniment and the words "Silent night, Holy night, all is calm, all is bright." 60 pure and clear in the Bavarian 61 The song 62 to England until one hundred years age. Times have changed, but "Silent Night” has 63 . It is still sung comers of the world 65 people commemorate the birth of Christ.

A．covered
B．isolated
C．enclosed
D．surrounded