Complete the sentences with a possessive pronoun 1. this is my brother’s phone. i know it’s . 2. they aren’t our books. are at home. 3. this isn’t my pencil case. is yellow. 4. maria’s got an mp3 player. this mp3 player is . 5. they aren’t your marker pens. are in your bag. 6. it isn’t my parents’ car. is black.