4.

1. family
2. aunt (and) uncle
3. walking
4. Dad
5. sister
6. wonderful

5.

1. A fantastic place with lots of things to do
2. They get to take photos of old streets and buildings
3. Yes, a lot
4. Dmytro's favorite place is Zamkova Hora
5. He can see the whole city
6. The cafe food and drinks are really tasty there