— ________ invention the wheel is! — I can’t agree more. It is an invention that changed the world.
—I’m in Class 4. Are you in Class 4, ____? —Yes, I am.
—Is her name Kate? —____
—____ is she? —She’s fine.
—What’s that ____ English? —It’s a desk.
—What are those? —____ are cakes.