1.   He injected a note of caution in his talk.

2.   Because this is boxing, we are reluctant to suggest the fighters have injected a note of dignity in the proceedings.

3.   But Art Palmer, of the Earth Island Institute, injects a note of caution.

4.   But Secretary of State Warren Christopher, briefing reporters at the White House following the public ceremonies, injected a note of caution.

5.   In his stump speech, Gore injects a note of uncertainty about the future, which may reflect his vacillating relationship with Clinton.

6.   In her report, Ms. Wyman, a Democrat, injected a note of caution.

7.   Intermission interviews, once a fixture of live PBS telecasts, also inject a note of extra risk.

8.   Now, she has injected a note of suave sexiness into her designs.

9.   Other scientists injected a note of caution, saying the recent string of stormy years was still too short to constitute a clear trend.

10.   Still, a poignant note was injected.