题目内容：

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空（不多于3个词），并将答案填写在答题卡的相应位置上。

When Joe was about to start school, all signs pointed to success. Yet things turned out 1.(be) quite disappointing. The fourth grade even found him at the bottom of the class. Joe struggled day and night, but 2. made him upset was that it did not work—until one stormy afternoon.

On that afternoon, as the math teacher started to introduce difficult concepts, dark clouds covered the sky, and the storm set in. 3. she tried to make the kids concentrate, the thunder won the battle for their attention. No one grasped the concepts. Except for Joe. He understood them and answered all the questions correctly. The teacher patted him on the back and told him to go around to the others and explain how he 4.(manage) it. 5. (encourage) by his newfound success, Joe moved quickly throughout the room. Soon math time 6. (follow) by the time for art. All children 7. (natural) drew dark pictures on such a day. Except for Joe.

Since then, Joe started improving. Though he never made 8. to the top, his math teacher was always curious about the 9. (amaze) change: Why had that stormy day changed Joe?

On the day Joe graduated, he presented the teacher with his most familiar 10.(possess)— the picture of bright yellow sun. On the picture Joe had written: This is the day I woke up to my brightness.