根据以下要求，设计电路，用笔代线在图中画出相应的实物连接图．（导线不能交叉）要求：
①只闭合S1时，红灯发光，绿灯不发光
②S1、S2都闭合时，两灯都发光
③只闭合S2时，两灯均不发光．
38－19＝
My name is Lily. I'm from London. This is my mother. She is an English teacher. She is good at cooking and she is nice. This is my father. He is thin(瘦的)and short. He is clever. I love them. Oh, this is my house. Is it beautiful? The famous Thames(泰晤士河) is close to my house. It is long. There are a lot of ships on the river(河). I like watching the ships.
