11.   You would hardly expect him to make a sudden switch to what the academicians call formulaic writing.

12.   Few of its followers seem bothered by the sudden switch from atheism to increasingly popular Christian worship.

13.   Neither officer explained the sudden switch in plans.

14.   Carlos Alberto Parreira is on the threshold of a sudden switch from a symbol of hate to Brazilian icon.

15.   The sudden switch in fortunes has forced Chretien to abandon his hands-off approach to the referendum campaign.