六、阅读下面的短文,用方框中所给词的适当形式填空,使文意通顺,结构正确。(每个单词限用一次)
try,cause,die,be,pay,can,attention,trouble,student,change
Martin is a fifteen - year - old boy. He used to 1. ______ a lot of trouble at school after his father's 2. ______ a few years ago. At that time, his mother couldn't afford to 3. ______ for his education. So she had to work and wasn't often at home.
His mother looked after him as well as she 4. ______. But he was still not interested in study and often got into 5. ______ with the police. Luckily, his mother didn't give up 6. ______ to help him. She decided to talk with him. She told him how much she loved him. And Martin realized that since his father died, he had been afraid of 7. ______ alone, and had tried to make his mother pay more 8. ______ to him. Now Martin has really 9. ______. He has been one of the best 10. ______ in his class.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

1. cause 2. death 3. pay 4. could 5. trouble 6. trying 7. being 8. attention 9. changed 10. students