21. They hoped that the response of the molecules to this radiation would cast light on the structure. 22. The case is expected to cast light on the alleged involvement of Pyongyang in the international drug trade. 23. There are also temporary exhibitions which cast light on everyday life and the cultural heritage of the county. 24. The parallel tales cast light on the little-known role played by the CIA in the war on drugs. 25. His results cast light on the environment in which the carbonate grains and so-called microfossils in that meteorite formed. 26. Williams'comment casts light on who he is _ fiercely competitive, a premier coach, a little bit of a cornball. 27. Early Irish literature casts light on the flavour and tradition of the heroic warrior elites who dominated Celtic societies. 28. A gifted writer can use the prism of his or her self to cast light on the human condition. 29. The tour is meant to cast light on the Circassians'heritage and pay tribute to the minority's devotion to Jordan's throne. 30. But it has cast light on how a few Irish politicians have become rich in a career of public service.
