Do you want to know ?A. what does it needB. what it needsC. it needs it needD. what needs

问题补充：

Do you want to know ?

A. what does it need

B. what it needs

C. it needs it need

D. what needs

答案：

A. what does it need

(答案→)B. what it needs

C. it needs it need

D. what needs

解析：本题的含义是你想知道它需要什么know后跟的是一个疑问句的宾语从句，关系词what加句子的正常顺序，故本题选B。