谈论发明创造的表达 — 英语选择题
题目
在科技节交流活动中，Anna 向外国同学介绍小组的新发明。结合语境，选择最恰当的一项：
Tom: Wow, your group made a smart pen! ________
Anna: Yes. It can read words aloud for people with poor eyesight.
A. What is it used for?
B. Where was it bought?
C. How much did it cost?
D. Who broke it just now?