六、阅读短文,从方框中选择适当的词并用其正确形式填空,使短文通顺、意思完整。每空限填一词,每词限用一次。
race difference while tired reach he succeed loud practise really
Tony is my best friend. There are many 1. between us, though. I'm shy and quiet. However, Tony is more outgoing and he always speaks 2. than me. When we are free, I spend most of the time studying and reading, 3. Tony enjoys doing sports. Tony often joins in some running 4. . You can see a lot of sports medals (奖牌) in his room.
Last month, Tony asked me to join in a cross-country running race together with 5. . At first, I said no because I wasn't 6. good at running. “If you don't have a try, you will never know how far you can run,” Tony said to me. Hearing his words, I decided to join in the race.
After 7. for a month, I ran for the race yesterday. I ran fast at first. But half an hour later, I was 8. and became much slower. I was about to give up when Tony came up to me and said, “Come on! You are doing a good job. Try your best! You can make it. ” In the end, I 9. in finishing the race.
Just as the saying goes, “Perseverance (坚持) leads to victory. ” To 10. the finishing line, we should never give up easily.

1. differences
2. louder
3. while
4. races
5. him
6. really
7. practising
8. tired
9. succeeded
10. reach

【解析】：
1. 根据上下文应填“我们之间有很多不同”，many 后接可数名词复数，difference 的复数形式为 differences。
2. 根据“Tony is more outgoing”可知他说话比我大声，than 前用比较级，loud 的比较级为 louder。
3. 前后句形成对比，用 while 表示“然而”。
4. “running races”表示“赛跑”，some 后接可数名词复数，race 的复数为 races。
5. “with him”表示“和他一起”，he 的宾格是 him。
6. “be really good at”表示“真正擅长”，really 修饰 good。
7. “after practicing”表示“在练习之后”，after 是介词，后接动词 - ing 形式，practise 的 - ing 形式为 practising。
8. 根据“became much slower”和“give up”可知我很累，tired 表示“疲倦的”。
9. “succeed in doing sth.”表示“成功做某事”，事情发生在过去，succeed 用过去式 succeeded。
10. “reach the finishing line”表示“到达终点线”，to 后接动词原形。