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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.

 [     ]

A. are both
B. both are
C. are all
D. all are