11.   Casey tried a number of ways to inflate his confidence.

12.   Charles Bibb, an assistant coach at East Side High when Gray attended the school, said that he had tried a number of times to reach Gray.

13.   Donna school officials are trying a number of strategies.

14.   Engineers have tried a number of ways to control jackknifing.

15.   Florida, seeking to protect its beaches and the tourism industry that depends on them from oil spills, is trying a number of legal maneuvers to prevent drilling.

16.   He and his wife have tried a number of different denominations.

17.   He gently strokes a piano key before trying a number by Billy Joel.

18.   I have tried a number of the recipes and have enjoyed leafing through the edition frequently.

19.   I tried a number of cheeses, and these tasting notes are in order of preference.

20.   If filmgoers who try the number are lost as to which films they might try, there were two positive recommendations Tuesday.