谈论发明创造的表达 — 英语选择题
题目
在校园科技节上，Li Ming 想向外国朋友介绍自己的新发明。下列哪一项最适合用来谈论这项发明？
A. My new machine helps water plants, and it works well.
B. I am reading a storybook in the library now.
C. Let's go to the playground after class.
D. My favourite subject is science.