11.   There were dark rings under her eyes and her skin was paler than usual.

12.   These rings are ten a penny.

13.   We searched everywhere but the ring was nowhere to be found.

14.   Rings like these are ten a penny.

15.   There was a ring at the bell.

16.   There was a ring on each of his fingers.

17.   The ring is solid gold.

18.   There were wet rings of sweat marking the top of his shirt-sleeves under his arms.

19.   The Inland Revenue originally wanted the machinery ring to be responsible for tax deductions for such workers.

20.   The ring is virtually invisible around the central cornea which is the critical area for clear vision.