Is that shirt ________?

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Is that shirt ________?

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Is this watch ________?

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Is this watch ________?

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Is that his pencil case?

1. A.
   Yes, it's her pencil case．
2. B.
   No, it's a pencil．
3. C.
   Yes, it's your pencil case．
4. D.
   No, it's my pencil case．