Foever ,How far is it?

Foever ,How far is it? How far is it always how far is it form How far is it?________. How far is it forever? How far is it from two yrs,how far is it? How far is it?怎么回答! How far is it from here? How far is how far How far is it form here to ...It is far from ...中far 是什么词性? 请问是How far it is from here.还是How far is it from here.