My mother insisted that my father should buy a piano for me and finally he managed to fin

问题补充：

My mother insisted that my father should buy a piano for me, and finally he managed to finance .

A. this

B. that

C. one

D. it

答案：

A. this

B. that

(答案→)C. one

D. it

解析：

考查代词。句意“妈妈坚持要爸爸为我买一架钢琴，爸爸最后提供资金买了一件钢琴。”此处finance用作动词，一件钢琴为泛指单数，用one代替。故选C。