I.选择a或an填空:
1. I have________apple.
2. Give me________box.
3. He's________English boy.
4. Is that________yellow pear?
5. It's________eraser.
II.选择is, am, are填空:
1.—How________your father?
—He________fine.
2.—What________those?
—They________ducks.
3. I________a student.
4. —________you from China?
—Yes, I________.
5. —________this a bear?
—No, it isn't.
6. —Where________the cat?
—It________under the chair.