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2. my, hers

3.his, mine

4. our, their

5. her, his

6. your, ours

7. their, yours

2. i gave her my phone number, and she gave me her

3. He gave me his phone number, and i gave him my

4. We gave them our phone number, and they gave us their

5.  She gave him her phone number, and he gave her his

6. You gave us your phone number, and we gave you ours

7. They gave you their phone number, and you gave them your