What do you want to do?何をしたい?
want to do したい
I want to eat seafood.海鮮をたべたい。
答え方はwant to~の後にしたいことを入れる。
What do you want to buy?何が買いたい?
I want to buy a cookbook. 料理の本を買いたい。
What do you want to drink? 何が飲みたい?
What do you want to do today?
I want to go to the