题目内容：

---I'm going to town.May I borrow your bicycle?---Certainly.Here _ .
A.is the key to it
B.is the key for it
C.you are to it
D.you are for it

优质解答

选择B

追问：

为什么是for it?

追答：

for有为...而准备的意思，所以个人认为是for不是to，请你自己判断正误。