---Do you need some milk?-Yes I .A. neededB. needC. doD. did

问题补充：

---Do you need some milk?

---Yes, I .

A. needed

B. need

C. do

D. did

答案：

A. needed

B. need

(答案→)C. do

D. did

解析：本题中need为实意动词，故一般疑问句回应应借助于助动词。问句为一般现在时态，答语也应用一般现在时态，故选C。