单项选择---Whatdoyouneed?---Iwanttobuy

问题详情：

单项选择

---What do you need? ---I want to buy ___________.

A. a box of crayon                      B. two boxes of crayon   

C. a box of crayons                    D. two box of crayons

【回答】

C

知识点：名词

题型：选择题