—Could I use your pencil for a few moments, please?
— I'm not using it myself.
A. Come on
B. It depends
C. Go ahead
D. That's great
网友回答
A. Come on
B. It depends
(答案→)C. Go ahead
D. That's great
解析：考察交际用语。A加油；B看情况而定；C去做吧！D太棒了。加油：—我可以用你的铅笔吗？—去用吧！我现在不用。根据句意说明C正确。