问题补充：
—Do you want for your son?
—Yes, I do.
A. to buy any books
B. buy any books
C. to buy some books
D. buy some books
答案：
(答案→)A. to buy any books
B. buy any books
C. to buy some books
D. buy some books
解析：句意：— 想要给你的儿子买书吗? —是的。want to do sth 想要做某事，buy sb sth=buy sth for sb,any用于疑问句中，故选A。
考点: 考查非谓语动词和不定代词的用法。
