21.   Concerned that ETA, the Basque separatist group, may try an attack, Spanish authorities have tightened border restrictions and are searching cars entering the city.

22.   Coalition troops, with heavily armed guards, enter the city, to order everything from metal structures for temporary offices to catering for parties.

23.   Cordons of police officers in gray flak jackets and equipped with truncheons blocked cars from entering the city.

24.   Even after the students believed that the Taliban had entered the city, nobody left the examination session.

25.   Extra security measures include beefed-up patrols at train stations and stringent control of all vehicles trying to enter the city.

26.   His forces are ready to enter the city unless the Taliban make an agreement.

27.   If rebel troops enter the city, one official said, there is no doubt that Mobutu would order his army to fight them.

28.   In drawing up security measures for the meeting, Italy has already decided to block commercial traffic by planes, trains and automobiles from entering the city.

29.   In Bethlehem, the fighting ebbed briefly during the morning in a cease-fire that allowed a peace group to enter the city.

30.   It is now against Israeli law for Israelis to enter Palestinian cities like Nablus and Jenin.