What's that on the chair?

What's that on the chair? Look,what's that u_____ the chair? is,what on,under,that,she,the,chair,floor what 's that on the What's on the chair?How is your father?What are these?What i here,put that( )bag on this chair,penny.what's( )it? 连词成句 "is what on under that the the chair floor" What's that on the desk? the,What's,that,desk,on? Tommy’s book is on the chair. I had left it on the chair.That's where I _____it. What 's that on the grass?---It's -----sheep