How are you J? (Remember to add punctuation and watch out for run-on sentences by making your sentences shorter.)

I'm glad for to receive your reply. (Using "for" would be equal to using "because" in that place, which is incorrect grammatically. Instead, it is common to use the infinitive which is "to + verb" in those phrase types. Does that make sense?)

Excuse me *but, it's better you don't write **to me in chinese' tone, because chinese is my mother*When using the phrase "Excuse me", you can either end the sentence there and start a new one, or in this case if when you are correcting someone, you use "but" after it and continue the sentence.**You need to add a preposition (in, out, up, down, to, from, etc) between verbs and indirect objects. Indirect objects are nouns that are related to the verb but the verb doesn't directly affect it. You are writing the letter, not yourself.

tongue. Only chinese character or pinyin will be ok for me.

Your pinyin is pretty. Only a one word was lost **missing.(你没有写给我[过guo]). (Remember to capitalize the first word of each sentence. Also, try to keep your sentences short to avoid run-on sentences. Use the sentence formula "Subject+Verb+(Adjective)+Noun" often.) ** In this case, the word "lost" is inappropriate because "lost" means that something that was there before is now gone. "Missing" means that it isn't there or can't be seen.

I look forward to hearing from you. continuing this way soon. (You don't need to add this part.)