where to go?意思是去哪里?回答应该是 I/We will go to Beijing(其他地点名词都可.).
What to do?去做什么?回答应该是 I/We will go to buy some books.
when to go?Tomorrow等一类的表时间的名词.
How to get there?By bus/bike/car/train.(用表示方式的交通工具.)