1.   A complete safety check was performed on the aircraft prior to takeoff.

2.   And the more vocational classes students take, the worse they perform on national assessments of achievement.

3.   He suffered from nerves and could no longer perform on stage.

4.   I can teach, do my creative avant-garde work which I love, as well as dealing with clients and performing on stage.

5.   In young children, construction occurs almost exclusively when they perform actions on objects.

6.   Officials would not release the results of the autopsy that had been performed on Gallagher.

7.   Screen actors feel that they gain credibility when they perform on stage.

8.   The experiments would be too risky to perform on humans.

9.   The power amplifier itself is almost totally performed on the chip and this makes construction very straight forward.