do you spell it?A. WhatB. HowC. How manyD. How old

问题补充：

do you spell it?

A. What

B. How

C. How many

D. How old

答案：

A. What

(答案→)B. How

C. How many

D. How old

解析：What 什么;How怎样;How many多少;How old多大.根据句意：你如何拼写它？根据句意故选B.