A. I can hear a bus.
B. Yes, it is.
C. It is brown and black.
D. I can see a boy.
E. It's a monster.
请按照要求画图:
①在甲图中,画出入射光线AO经平面镜后的反射光线;
②在乙图中,利用平面镜成像特点画出图中物体AB在平面镜中所成的像;
③在丙图中,画出BC的入射光线和AO的折射光线.