41.   It helps the child to make careful observation through either auditory or visual and make logical comparisons to develop the ability to classify and categorise.

42.   Military analysts say China wants to develop the ability to use aircraft carriers, which would let it expand its naval power far beyond its shores.

43.   Now, he said, the group should help disadvantaged countries develop their ability to conduct international trade and help them adapt to changing trade rules.

44.   Reports said they had undertaken the tour to help develop their ability to face challenges in their careers.

45.   Primary schools have been built in almost every village in Thailand, but they have not helped children develop the ability to solve problems.

46.   Reports said they took the tour to help develop their ability to face challenges in their careers.

47.   Russian scientists have developed the ability to spy on American spy satellites in space, a news agency said Saturday.

48.   Since this is no longer a time of plenty, people may have suddenly developed the ability to listen.

49.   Television reports said they had undertaken the tour to help develop their ability to face challenges.

50.   Television reports said they took the cave tour to help develop their ability to face challenges in their careers.