介绍一项小发明的短文写作 — 英语填空题
题目
请根据提示完成短文填空，介绍你的小发明。My invention is a ___（聪明的）water bottle. It can remind me to drink water every ___（小时）. The bottle is made of ___（塑料）, so it is light and easy to carry. I hope my invention can help people keep ___（健康的）.