1.   A variety of news items were selected at different times during the three years of the survey.

2.   Apparently there were discrepancies between police reports taken from the same witnesses at different times.

3.   At different times Polanco, Garza, Santana and Marmalejo were assigned to these buses as drivers or chaperones.

4.   At different times, for different groups the process takes different forms, but the general effect remains the same.

5.   But those were different times at an unusual agency pursuing a visionary mission.

6.   Carbon dioxide is removed from the atmosphere by a number of processes that operate on different time scales.

7.   Different criteria of mate preference develop in different cultures at different times.

8.   First, the questions asked in the surveys related to behaviour over different time periods.