71.   By the time Christopher began using the term, most of the killings had already taken place.

72.   Clinton hailed the economic revival that has taken place in New Hampshire during his presidency.

73.   Coal-tar technology could not cope with the huge expansion in the chemical industry that took place after the Second World War.

74.   Communication is also a social affair, usually taking place within the context of a fairly well defined social situation.

75.   Confirmations and ordinations did not take place - most of the bishops and many of the religious communities were in exile.

76.   Convection takes place in liquids that are hotter at the bottom than at the top.

77.   Davis was not involved in criminal allegations, but the assaults were said to have taken place in his dorm room.

78.   Days start with a morning chat, and most windsurfing takes place in the large bay.