Ответ:
- I've been here — b) an action which started in the past and continues to the present.
- I'm having a great time — d) an action happening now.
- I've been dancing — b) an action which started in the past and continues to the present.
- I've taken lots of photos — e) a completed recent action.
- I'm lying on the beach right now — d) an action happening now.
- I'm having dinner at a restaurant later — c) an action which started in the past and continues to the future.
- I'm going back to Rio next week — c) an action or arrangement continuing into the future.
