问题补充：
—Kangkang, can I borrow your bike?
—
A. I’d love to.
B. Thank you.
C. Sure.
D. You’re welcome.
答案：
A. I’d love to.
B. Thank you.
(答案→)C. Sure.
D. You’re welcome.
解析：A.I’d love to.我很乐意去B.Thank you. 谢谢你C.Sure.当然 D.You’re welcome.不用谢；句意：康康，我能借你的自行车吗？当然可以。故选C.
