The book _____ be Tom’s.—No, it _____ be his. There’s a name on the book. It’s Jim’s.

Your sister bought a camera last week, didn’t she? —Yes, and it her a lot.

Boys and girls, we will have a class trip to Taixing Park next week.—Great! It must be ______. I simply can’t wait _____ it.

I am still curious _____ what happened to her _____ that cold winter evening. [ ]

Look! There is ________ cat in the tree.