This is ____eraser and that is ____ID card.
| A．a， an | B．an， a | C．a， a | D．an， an |
—Do you have a ruler? —Yes, but a short _____.
A. it B. ones C. One
—What color is it? —_____.
A. It’s a green apple.
B. It’s orange.
C. It’s an orange.
—Are those cars? —_____. They are buses.
A. No, it isn’t
B. Yes, they are
C. No, they aren’t
—I’m in Class 3. —I’m in Class 3, too. We’re in ____ class.
A. the same B. same C. a same
—Who is that? —_____ is Michael.
A. He B. That C. This