这段英语有没有语法错误

题目

这段英语有没有语法错误
I don't think this movie is to persuade the audience to behave more decently and warn them not to disobey their destinies.
I think it tells the audience life would not be easy.Lieutenant Dan was an ordinary military officer in the Vietnam War.He was crippled and a man who would stoop to anything.But Forrest Gump rekindled his hope.From then on,Lieutenant Dan became a successful person from the man who was always feeling black.Even if you suffered a grievous blow,we just should be full of confidence,and we will surmount the obstacle with our great willpower.
Every man have his gift.Forrest Gump had his long suit though he was a man with low IQ.He succeeded,needless to say us.
Everyone is equal.We take every chance that comes along,then we study and work at full speed.There will be no object.

答案

I don't think this movie is to persuade the audience to behave more decently and to warn them not to disobey their destinies.
I think it tells that the audience life would not be easy.Lieutenant Dan was an ordinary military officer in the Vietnam War.He was crippled and a man who would stoop to anything.But Forrest Gump rekindled his hope.From then on,Lieutenant Dan became a successful person from the man who was always feeling black.Even if you suffered a grievous blow,we just should be full of confidence,and we will surmount the obstacle with our great willpower.
Everyone has his gift.Forrest Gump had his long suit though he was a man with low IQ.He succeeded,needless to say us.
Everyone is equal.We take every chance which comes along,then we study and work at full speed.There will be not object.