天黑了,小明打开客厅的灯,会在窗玻璃上看到另一个“自己”,这是由于光的 ____形成的;同时,小丽玩起了手影游戏(如图所示),墙壁上的“大雁”是由于光的 ____ 形成的.
Hi,I'm Lili. I'm from China. I'm a____(student\teacher).This is my family. Look at the man,____(He's\She's)my father. Look at the woman,____(He's\She's)my mother.____(He's\She's)a____(student\teacher). I love my family.