填入适当的物主代词5.this isn't___(mary) desk6.this book is a gift for you.it's___book

问题描述:

填入适当的物主代词5.this isn't___(mary) desk6.this book is a gift for you.it's___book

5.This isn't (Mary's) desk.

6.This book is a gift for you. It's (my) book.