친구 만나러 가는 길이에요. => 띄어쓰기도 중요할 수 있습니다. I am on the way to go to meet my friend. 왜 그렇게 말하냐구요? 친구 만나야 하는데 아직 못 만났어요. 친구 만나러 가는 중이에요. 그래서 그렇게 말하는 거에요.

For example, ~구나 When you would like to speak yourself in a small sound, When you realize, finally you become to know something new that you have not know exactly or something that you want to know in your potential mind, you can use ~구나 next the main verb, for example, 이것이 새구나. 이것이 산이구나, 이것이 바다구나, 이것이 컴퓨터구나, 이것이 개구리구나, 이것이 공책이구나, 이것이 볼펜이구나, 등등, On the other hands, ~네요. For example, 아기 참 귀엽게 생겼네요! 선생님 이쁘네요! 여자친구 이쁘게 생겼네요. 등등 When you use this word, certainly there is an person that can hear your word. When you want to express an feeling from something or someone, she/he can listen what you say. but ~구나 may not have an opposite person.

I want to delete what i wrote a while ago here. how can i do?

I should have written just 호주 but there happened to be written 주 letter one more time.

아침에 is the status of the morning. "in the morning". For example, I joined this website in the morning of today. 아침이면 is some conditions of the morning. For example, if it is the morning, i should have to wash my hands.