— Look, here’s an English book on the desk, Is it yours?— No, it isn’t _______. It must belong to _______.

——Look! Who is the man in the picture（图片）?——I know.  ______ Zhou Xingchi.

We’ve decided to decorate our new flat by ______ this weekend.

We want a teacher to teach_______.

 —Is this your book, Alice?  —Yes, it is ____ book. Thank you.