---May I your bike?---Sure. But please give it back to me this afternoon.A. buyB. lendC.

问题补充：

---May I your bike?

---Sure. But please give it back to me this afternoon.

A. buy

B. lend

C. borrow

D. give

答案：

A. buy

B. lend

(答案→)C. borrow

D. give

解析：相当于主语来说，借出用lend 借进，用动词borrow，根据句子的意思，故选C