—I paid him 200 yuan for the sneakers.

—Oh, he charged you too much. You _________ them with half the money.

A．could have bought

B．needn’t have bought

C．must have bought

D．wouldn’t have bought

要改变某个段落的格式，需要将插入点置于（）。

A.该段落的段首

B.该段落的段尾

C.文档首

D.该段落的选择区中

E.该段落的行尾