---Are these black pens yours?
---____________. My pens are blue.
| A．Yes, they are. | B．No, they aren’t. |
| C．Yes, they aren’t. | D．No, they are. |
---Are these black pens yours?
---____________. My pens are blue.
| A．Yes, they are. | B．No, they aren’t. |
| C．Yes, they aren’t. | D．No, they are. |
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