71.   Once the service was over the men would start work on the railway that ran alongside the camp.

72.   Once this spell of bad weather is over, we can start work on the garden.

73.   Protesters held up work on the new road.

74.   Provenance work on the turbidite sandstones has indicated at least two sources for heavy minerals.

75.   Rex finished up the work on the replacement sock valves.

76.   Richard deserves a special mention for all his hard work on this project.

77.   Stephen Wolfram, a mathematical genius who did pioneering work on the varieties of computer algorithms agrees.