1. his composition is much more interesting than your or mine. 2. it was through no fault of (her). 3. you can do without my help but not without (their). 4. this radio-set of (his) is always out of order. — but so is (your)! 5. the books on the table are (our). 6. the pleasure was all (my).

1. His composition is much more interesting than yours or mine
2. It was through no fault of hers
3. You can do without my help but not without theirs
4. This radio-set of his is always out of order. - But so is yours!
5. The books on the table are ours
6. The pleasure was all mine