－Mom, where’s my backpack?－You shouldn’t put your things casually, you should take good care of _____ own things. 

---___is the girl in a red jacket? ---She is Sally, my sister.

--- Did your classmates have a good time in the Disneyland last weekend?---Yes. They enjoyed _________ very much.

--Is this __________book?--No．That is ___________ book．

----Where will Alice sit?----The seat next to Kenny’s is _________.