选词填空. 1. this that (1) _________is a pencil. Look ! It's over there. (2)_________ is my book. The book is here. (3)Mom, _______ is Sonia. Sonia, ________ is my mother. 2. no not (1) -Is this your pencil? - ________.It is ________. (2) This is a dictionary. It's _________ a book.