11.   Everyone can play a part in improving the security of their neighborhood.

12.   Exploitation by charlatans played a part, as did certain traditional beliefs.

13.   For his last three Decades Clarke played no part in science or public affairs.

14.   Guilt also plays a part in the energy expended.

15.   He even played his part as a support bowler, whose right-arm leg-breaks or medium pace could be quite economical.

16.   Health education will play a part in preparing us for old age.

17.   I played no part in leaking the information to the press.

18.   If he did, the probability is that his genetic inheritance played its part somewhere along the line.