帮忙修改下,主要是语法的错误,最好能解释下错因!谢谢

帮忙修改下,主要是语法的错误,最好能解释下错因!谢谢
An American who years over half hundred, in order to completed wife's wish, in the last years he walked to cross the Chinese land, each to a city, will taken out 500 yuan enter the native Red Cross contribute money boxes……
" My wife can see everything that I do in the sky" he said," I am 51 years old,47 years old of the wife who die, we are all from the Connecticut state of taught in a high school.In 1996,I steped on the Chinese land with Ornan for the first time,she is very quick was drawn on with simple people and beautiful scenery.The Children though has no money, the pencil does not good to use, they under the moonlight study, having a class in the house that leak air, very great.After retiring, we arrive at China, but, in 2002, Ornan is looked up the cancer in Shanghai, we return to the Connecticut state treatment.But, because the cancer cell spread, the Ornan took to love dearly to leave me with the regret, she spoken her wish —— For China poor and love passionately study of child and simple Chineses to do something. So from 2005 I began walks in China alone.Shenzhen, Guangzhou, Sichuan,…… Peking, Tienjin, Yunnan, I have walked 26 stand, each to a city, I will taken out 500 yuan enter the native Red Cross contribute money boxes.It is meaningful to do like this, my wife can see everything that I do in the sky."
How the brave that person admire, he for the sake of love, for helping those poor child in foreign country, he do like this of pay!I can'thave anylanguage to express my respect ,I think I just need to give the faraway praying for him" wish you peaceful!"
引用：问一下,very great连同上面的though在这里你想表达什么意思?
解释：是说那些小孩,如此热爱学习,令人觉得很伟大,也就是“很伟大”
引用：he do like this of pay!这句不明白
解释：意思为“他如此的付出”
先谢谢了!