51.   The development of an effective network arrangement to create and evaluate materials and technology needed for hearing impaired learners.

52.   The first step needed for building confidence is for the regime to release all political prisoners.

53.   The first week of the course is spent teaching students English phrases needed for everyday life.

54.   The huge investment needed for wiring and upgrades will come only after sufficient consumer demand for the e-commerce services.

55.   The important conclusion is that some of the cognitive capacities needed for language evolved long before humans.

56.   The site, needed for a parking lot, was entombed without being excavated.

57.   The skills needed for this kind of work are almost certainly totally alien to the average businessman.

58.   The total for all the big chunks is the budget and time needed for the entire project.

59.   These furnaces must have been producing far more iron than was needed for local consumption.

60.   They were probably also used to transport the massive stones needed for constructing the complex.