Home is best！

1) I‘m very happy that I come back to my home.

要注意时态的应用。英文里每一个动词的时态形式都必须符合所想表达的意思，毫无例外。拿你那句话作例，你回家是一件现在已经完成的事件，就得用现在完成形式叙述，即I'm very happy that I have come back to my home。用一般过去时也成立，即I'm very happy that I came back to my home，但意思稍微有区别，有兴趣的话，可以自己参考语法书。我想表达的重点是，英文里每次用到动词一律要应用正确的时态，否则你的句子是注定作错的。

2） It's cost my 25 hours to go home from my college school by train.

花钱 = cost money

花时间 = take time 或 spend time (cost time一般是错的，不过也有些特殊情况可以这么说，此略）

宾语是me，而不是my

时态又错了。应该这么写：

It took me 25 hours to go home from my school by train.

college就是学校的意思，不能说college school。

3） It's can't sleep well on train.

主语是什么？It's是指什么？应该是在说自己吧？I can't sleep well on trains.

顺便说一下，在说一般情况的时候，除了用一般时态之外，宾语应该用复数形式，就是trains而不是train。这点也有一定讲究，可以参考语法书。

4） I'm very tired, but everything will be ok in home.

home跟at搭配，就是at home。除此之外，从语法的角度来看，你那句话成立，但从逻辑的角度来看，有点别扭。你已经到家了吗？那用将来时(will)有点奇怪。如果还没到家的话，最好说I'm very tired, but everything will be OK when I get home。（get home = 到家)。

5） I will find a part-time job in this summer holiday.

in要去掉。

6) I want to learn something out of school.

什么意思？想在学校之外学到一些知识？I want to learn something outside school.

7) I will have a rich vacation in home.

一般不能用rich来形容vacation，不能说绝对错，但起码不地道。同前所说的一样，要说at home，别说in home.

Home is best！

I‘m very happy that I have arrived come back to my home. It's cost my taken me 25 hours to go home from my college school by train. It's can't difficult to sleep well on the train (It's impossible to get a good sleep...). I'm very tired, but everything will be ok in at home. I will find a part-time job in this summer holiday. I want to learn something out of outside school. I will have a rich wonderful? vacation in at home.

Don't need to use 'my' with home, or school or college, - it is understood in each case.

'at' is the preposition commonly used with home (don't ask me why! :) )