—Who’s the man over there? Is it Mr. Black? —It ______ be him. He’s much taller.
Tom didn’t go hiking with his classmates ____ his illness.
How will you feel when ____?
Helen is 15 years old, and Joan is 15, too. So Helen is ____ Joan.
—What ____ news!—Yes, all of the children were ____.
New York is one of ____ in the world.