21.   Walker, who was signed this summer to replace Horace Grant, is looking forward to proving himself worthy of the starting job over the next several games.

22.   Cricket lovers are quick to point out that a nation must show its proficiency at the one-day game to prove itself worthy of test play.

23.   Once proven flight worthy, the engines are transported to Kennedy Space Center in Florida for installation on an orbiter.

24.   When the good times rolled, these clients had proved themselves worthy of trust and respect.