this is that is,whatisthis

预订 this is the smile that audrey has [9781943417087]
unit 2 this is my sister.
七年级英语上册unit3isthisyourpencilsectiona(3a_3c
what's this/that in english? is it book? no, it's pencil.
this is me!unit 1课件.pptx