2) Are you from the USA? - No, I'm not.

3) Is your birthday in August? - Yes, it is.  / No, it isn't. 

4) Is Holly from Australia? - No, she isn't.

5) Is your family from Spain? - No, it isn't. / No, we aren't.

6) Is your birthday in June? - Yes, it is.  / No, it isn't.