What?
What are you going to do this summer? - I'm going to eat seafood
What?
What are you going to do this summer? - I'm going to stay in a hotel
What?
What are you going to do this summer? - I'm going to build sandcastles
What?
What are you going to do this summer? - I'm going to go on a boat cruise
Where
Where are you going this summer?- I'm going to Fansipan mountain
Where?
Where are you going this summer?- I'm going to Ha Long Bay