The World Wide Web is sometimes jokingly called the World Wide Wait because it _______ be very slow. 

I’m very glad I have my own room in my house. I ______ do what I want in it.

 I felt surprised that anyone of his intelligence   ________  such an easy test.

—Whose purple coat is this?—It ____ be Lily’s. Hers is red. It _____ be Lucy’s. She likes purple.

 .Susan’s parents have bought a large house with a swimming pool. It ______be very expensive.