1.   A half-dozen key players have been there.

2.   As with Aplysia, a key player in this process appears to be calcium ions.

3.   He had become a key player in the New York real-estate game community, which is both tightly knit and secretive.

4.   Losing our key player would be a major setback for the team.

5.   Northampton, too, were missing key players, going down by five tries to a consolation one.

6.   Principals are key players and are encouraged to take the lead to ensure that identification procedures are implemented.

7.   Resignations followed and several key players in the hip-hop wars became un-persons.

8.   The Council at least has the power to hire and fire some key players beyond the manager.