Ответ:

1. Two woman on bench have been talking for a lot of hours.  

2. Couple have been shopping since lunch.  

3. People have been walking on this street since morning.

4, Lady have been walking the dog for a few hours.

5. Dad have been spending time with his daughter for half an hour.

Объяснение:

https://www.native-english.ru/grammar/present-perfect-continuous - здесь неплохо описаны правила по которым мы используем present perfect continuous.