I want buy some clothes my son.Ato for B．× for C．to to

问题补充：

I want buy some clothes my son.

A．to, for B．×, for C．to, to

答案：

解析：句意：我想去给我的儿子买一些衣服。想要做某事，want to do sth。给某人买某物,buy sth for sb。故选A.