Where are Fred and Ruby going?
They are going to Kaohsiung.
Where are they now?
They are in Taiwan.
Are Fred and Ruby in Japan?
No, they aren't.
Are they busy?
Yes, they are.
Where are they now?
They are in Kaohsiung.
Where were they one hour ago?
They were in Taichung.
Where were they 3 hours ago?
They were in Taipei.