1. ah!, oh!, alas!

interjection (kandoushi) word usually written using kana alone

2. yes, indeed, that is correct

interjection (kandoushi) word usually written using kana alone

3. aah, gah, argh

interjection (kandoushi) word usually written using kana alone

4. hey!, yo!

interjection (kandoushi) word usually written using kana alone

5. uh huh, yeah yeah, right, gotcha

interjection (kandoushi) word usually written using kana alone