摘要： Is this your pencil?
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— Is this your pencil box? —Yes, ____________.
A. you are good B. it isn’t C. it’s not good D. thank you
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—Is this your pencil?
—No, ________. It’s his pencil.
A. it is not B. it is C. it isn’t D. it’s
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Is this your pencil?----- ___________.
| A．Yes, it’s. | B．No, it isn’t. |
| C．Yes, it isn’t. | D．No, it’s not. |