— Excuse me would you be kind enough to me your bike? — Sure. Here’s the key.A. returnB.

问题补充：

— Excuse me, would you be kind enough to me your bike?

— Sure. Here’s the key.

A. return

B. borrow

C. keep

D. lend

答案：

A. return

B. borrow

C. keep

(答案→)D. lend

解析：句意：打扰一下，你能热心的把单车借给我吗？当然，这是钥匙。A 还给；B 借进；C 保持，拥有；D 借出；结合语境故选D。