关于英语的问题 For artistic inspiration ,the artist lived in the co

关于英语的问题 For artistic inspiration ,the artist lived in the country for three years,
那位艺术家为了获得创作的灵感,在农村住了三年,放弃了生活上的许多享受For artistic inspiration ,the artist lived in the country for three years,where he denied himself many conforts of life 请问这里WHERE 是指代什么,做什么成分?
2. Though received late at night, he started to work on
the document immediately.
答案是改为Though he received the document late at night,he started to work on it immediately.
而我改为 Received late at night, he started to work on the document immediately.
4. Reading the letter a second time, the meaning becomes
clearer.
答案是 When you read…
而我改为 I reading the letter a second time, the meaning becomes clearer to me.
我这样该可以吗?我认为这是独立性结构
5.Reading the instructions repeatedly , what he meant became clear to me
答案改为.Reading the instructions repeatedly, I became
clear about what he meant
而我改为 I reading the instructions repeatedly , what he meant became clear to me
同上一个原理

可以这样改吗?若不可以,问什么?还有其他的改法?有点长,麻烦了,谢谢~