MISSING LINKS CCXLV

Each trio of words below shares a Missing Link - that is, its members have something in common, obvious or not. For example, RIVERS, NOSES, & VIOLINS can all have BRIDGES.

1. Giver..........Taker..........Free
2. News..........Fly..........Wall
3. Rail..........Dog..........Duty
4. Zero..........Level..........Cover
5. Rate..........Time..........Number
6. Ground..........Sober..........Faced
7. English..........French..........Cape
8. Media..........Doubles..........Feelings
9. Piece..........Down..........Business
10. Play..........State..........Fountain

Answers:

1. Care
2. Paper
3. Guard
4. Ground
5. Prime
6. Stone
7. Horn
8. Mixed
9. Show
10. Pen