The story is ___ 87_ __ a young student. She worked very hard at her lessons. She was too busy __ _88 ___ have a rest. At last, she became ill, so she couldn’t go to sleep. Every night, when she went to bed, she closed her eyes and __ _89__ _ to sleep. But the more she tried, the more she stayed awake. After a while, she went to __ _90_ __ a doctor. “I just can’t go to sleep at night. What __ _91 __ I do?” “I have a ___ 92 __,” said the doctor, “Try counting numbers. By the time you reach one thousand, you will be asleep. I am sure of it.” The next day the student returned __ _93 __ the doctor’s office. “Well,” said the doctor. “___ 94 __ are you today? Did you try it?” The student still looked tired. “Yes,” she said. “I tried counting one, two… up to one thousand. But __ _95_ __ I reached 569, I began to feel sleepy. I had to get up and ___ 96_ __ some coffee so that (以便) I ___ 97 __ go on counting to one thousand. But then I still couldn’t fall asleep.”