阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。
Ali and his younger sister, Zahra, lived with their parents in a poor neighbourhood.
Their mother was very sick and their father was struggling to find a job, and they
had only a little money with which to buy food. As they had not paid the rent for
several months, the landlord was breathing down their necks(盯着他们).
One
day, Ali took Zahra's shoes to a shoe repairman to be fixed, but he lost them on
the way home. It wasn't until he got home that he realized he had lost the shoes.
He was afraid that his parents would be angry and disappointed, so he begged his
sister to keep it secret. Zahra agreed and the two decided to share Ali's running
shoes. Zahra's school hours were in the morning,
so she would wear them first. After school, she would rush back and give them to
Ali. He could then run to his school, which began in the afternoon. Although he
ran as fast as he could, Ali often arrived late and was warned by the school.
Ali
heard about a long distance race that was held
for the boys in the city. When he learned that the third prize was a new pair of shoes, he decided to take part. He ran home excitedly and promised his sister that he would
win her the new shoes.
The
day of race arrived. Ali had a strong start, but halfway through the race he began
to get tired and his legs began to ache. Getting more and more exhausted he thought
only of Zahra and his promise to her. Dreaming
of the new shoes he would win for his sister gave him strength, and he stayed right
behind the two fastest runners, determined to
finish third. Suddenly, as the finish line drew
near, another runner collided (碰撞) with Ali from behind
and he crashed to the ground.
注意：
1）所续写短文的词数应为150左右；
2）至少使用5个短文中标有下划线的关键词语；
3）续写部分分为两段，每段的开头语已为你写好；
4）续写完成后，请用下划线标出你所使用的关键词语。
Paragraph 1:
Ali looked up and saw the other boys rushing ahead.
Paragraph 2:
Filled with pleasure, Ali walked home quickly.
Paragraph 1:
