---- Are the books in the backpack?
---- ________.
| A．Yes, they are. |
| B．No, they are. |
| C．No, they don’t. |
| D．Yes, they aren’t. |
---- Are the books in the backpack?
---- ________.
| A．Yes, they are. |
| B．No, they are. |
| C．No, they don’t. |
| D．Yes, they aren’t. |
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