It is good to learn another language.

well. I am so happy that my mother language is not english because I can learn another language as well as the Korean language. (Usually because doesn't start a new sentence)

I wouldn't learn another language if I was in UK or USA and so on.
It is good for me to make an aim to learn another language such as english, chinese, japanese and so on.

It is good to learn another language.

Well, I am so happy that my mother language is not english, because I can learn another any other language except korean language.
I won't learn another language if I am in UK or USA and so on (you mean you would not learn another language if you were in English speaking countries?).
It is good let me to make an to aim to learn another language such as English, Chinese, Japanese and so on.