11.   Voting was prevented or disrupted in some areas by military operations when soldiers took advantage of the truce.

12.   Then a visit to the area by a UN mission had to be postponed, as Iran expressed its unwillingness to discuss the political issues related to the war.

13.   An increasing amount of work is still being undertaken in this area by the Secretariat.

14.   In this chapter we shall analyse the decisions made in each area by the four speech processing systems, HARPY, HWIM, HEARSAY-II, and TRACE.

15.   Remarkable disjunctions in the distributions of neotropical birds have been explained by their deliberate introduction to new areas by pre-Columbian bird-fanciers.

16.   It helps us preserve our natural areas by increasing opportunities for the people who are living around them.

17.   This epidemiological picture, typical of temperate countries, may be modified in some areas by factors such as climate or husbandry.

18.   Dusk was just falling as they turned into the parking area down by the river.

19.   A four-mile exclusion zone is being planned around common land to stop a second invasion of the area by New Age travellers.

20.   Detectives believe the victim may have been attracted to the area by the arrival of foreign ships.