- Do you happen to have twenty dollars on you? - ? - I want to buy a reference b

— Do you happen to have twenty dollars on you?

　 — ____?

　 — I want to buy a reference book.　

　 A. Do you want the money　 　 B. What will you want to do

　 C. How much　 D. What for

试题答案

D

What for?意为“为什么？为何目的？”。