看图，完成对话。
1. —Where are the _____?
—They're_____the_____.
2. —Where are the_____?
—They're _____the_____ _____.
3. —Where is the_____?
—It's_____the_____.
4. —Is this a bookcas?
—_____,_____ _____.
—What's it?
—It's a_____.
5. —Are those books under the _____?
—No,_____ _____.
—Where are_____?
—_____ _____the_____.
6. —Where are his pencils?
—They are_____(on, at) the dresser.
7. There is a set of keys_____(in, on) the drawer.
8. —Is the baseball_____ (in, under) the bed?
—No, it's under the chair.
9.The books are_____(under, in) the bag.
1. plants; on ; table 2. pencils; in; pencil case 3. baseball; under; chair 4. No ; it isn't ; drawer
5. sofa ; they aren't ; they; They're on; sofa 6. on 7. in 8. under 9. in