如图为眼球结构模式图
Why don't you ask your teacher for help?（改为同义句）
____ask your teacher for help?
____地喊 ____地喊 ____地说 ____地呻吟
Why not ____ your teacher for help when you can't finish _____ the story by yourself?
人类和类人猿所共有的特征是（ ）、
