1 - The authorities have announced zero tolerance for smoking in public buildings.

2 - When the British government announced the introduction of Concorde flights, there was a great deal of opposition from environmental groups, who even tried to block several major roads in the vicinity of the airport.

3 - The President is calculating that his decision on announcing cease-fire will somehow relieve the international pressure on him.

4 - The physician must certify the need for hospitalization, determine what procedures will be performed, and announce when the patient may be discharged.

5 - The world changed dramatically in February 1997 when Dr. Ian Wilmut and a team of Scottish scientists announced that they had successfully cloned an adult sheep.