卖灶糖老汉是下列哪部作品中的人物（）。

A.《沉重的翅膀》

B.《爱，是不能忘记的》

C.《拣麦穗》

D.《小鲍庄》

But this really is a surprise. It must be ten years _____ we last met in Beijing, isn’t it? And now we run into each other in Xiamen.   [ ]

A. since

B. before

C. when

D. that