1. 在老师的帮助下我在作业中的错误比以前减少了
With the help of the teacher, the mistakes in my homework is fewer than before.
2. 他擅长编滑稽的故事,他很容易使我们开怀大笑
He is good at weaving funny stories, so it is easy for him to make us laugh.
3. 残疾人不应当被嘲笑,相反地,我们应当尽可能多地帮助他们
The disabled shouldn't be laughed at, on the contrary, we shuold help them as much as possible.
4. 由于经常熬夜,他无法集中注意力听课（what the teachers say)
Because he often stays up, he can't pay attention to what the teachers say.
5.最后,他成功了,他的父母亲为他的成功感到骄傲
Finally he succeeded, and his parents were proud of his success.
手工翻译,希望帮到你.