21.   But their different faith has not prevented Christian citizens rising to top jobs, such as ambassadors and senior government officials.

22.   It said that the attack had prevented local citizens receiving their pensions.

23.   Malaysian Prime Minister Mahathir Mohamad said Saturday that the government will not prevent its citizens from working in Singapore amid recently strained bilateral ties.

24.   The aim, as with the Berlin Wall, was largely to prevent East German citizens from fleeing the rigours of communism for the delights of the capitalist West.