请求英语高手帮忙改正以下的错误。

. It was very late to save the drowning boy he had gone down for the third time.
去救那个已经三次沉下去溺水的小孩已经迟了
2' I can't help to think it would be fun to play such an exciting game with them.
我情不自禁的去想象和他们一起玩那个游戏将会很有趣
3' John said his mother would buy him a five-speeds racing bicycle for hissixteenth birthday.
琼斯说他的妈妈会给他一个five-speeds racing自行车作为生日礼物。
4' By reading the directions carefully, some mistakes in
the examination could have been avoided.
通过仔细的阅读提示，考试中的很多错误将可以避免
5' Of the two lectures, the first was by far the best one,
partly because the person who delivered it had such a pleasant voice. 关于那两个演讲，第一个非常好，某种程度上将是因为那个人的很有磁性的声音。

6. The chairman proposed that every speaker must limit himself to fifteen minutes.
主席提出每个讲话者必须把时间控制在15分钟以内。
7. That is troubling me is that I don't have much experience
in international commerce.
在国际贸易中经验的缺乏让我非常辛苦
8. When I got to the cinema, the film had already started; I ought to get there earlier.
当我到达电影院时，电影已经开始了，我应该早点到的。
9. After criticizing our proposal in every detail, the director went on telling us that there was nothing personal in his comments.
对我们的方案的每个细节的评判后，董事长说他没有评判任何一个人或事。
10. Johnie was not barely able to walk without help because the bad injury in his left leg.
who were fortu11ate --------l9 to meet her -------20 her lifetime.
johnie能够对子走路，因为伤在右脚上