介绍一项小发明的短文写作 — 英语选择题
题目
你要写一篇介绍自己小发明的英语短文。下列哪个开头句最适合点明主题并吸引读者？A. My invention is a smart water bottle that reminds me to drink water on time. B. Yesterday it rained heavily, so I stayed at home all day. C. There are many books in our school library. D. My best friend and I often play basketball after school.