How do you write the end in Japanese?

Any closure that is polite will be ok, similar to our English language.

2 options:

01 - 返事待ってます。

02 - 時間があれば又お手紙書いて下さい！　　待っています。


OBS: copied the answer from Yahoo.com/question/index?qid=20070828123519AAgq6cl">http://uk.answers.Yahoo.com/question/index?qid=20070828123519AAgq6cl