The dolphin （海豚） swam in her tiny tank． It was early evening and the park was
(1) ． She was alone again．
Earlier that day， she had performed her
(2) for the visitors； and though their cheers pleased her， they did not
(3) the anxiety of forced separation she experienced daily，
(4) her family．
Later that afternoon， her keepers had conducted their usual set of
(5) on her to make sure she"d be ready for the next day"s show． This time， she had given in quietly to their attentions． This
(6) them， as it always did they were so happy when she
(7) them． But， when she didn"t， they assumed there was a
(8) and she would be punished．
She dived down and stared through the glass window into the observatory room． During the day，
(9) crowded into this lower-level viewing room to watch her from an underwater
(10) ． The glass was
(11) with the hand prints of the many children who had pressed
(12) to get a good view．
Her daily routine rarely
(13) ． Trainers would teach her
(14) tricks， to be added to her show． Occasionally， humans would bring their ill or
(15) children to swim with her． And， over time， she would heal （治愈） them． But she"d always
(16) the process so as not to expose her amazing ability to the humans．
She swam up to the
(17) then stared
(18) at the stars above．
She was far from her family and she was
(19) ．
In the dark she sang…
But none of her kind
(20) her．