71.   They can be represented vertically, horizontally or be combined with line graphs.

72.   They can be used in a variety of ways, combined with other methods of instruction such as lectures and programmed learning.

73.   They normally use a small portion of the stroke intuitively combined with other moves and manoeuvres.

74.   They were offered Saturday courses, combined with distance learning materials, to upgrade their skills.

75.   This formative evaluation led to the use of a self-paced orientation tour combined with practical exercises.

76.   This more sophisticated and rationally expressed conspiracy theory of anti-semitism was combined with gutter racist anti-semitic abuse in its publications.

77.   This rapid expansion, combined with a large teacher training programme, was a mammoth task.

78.   This seems to reflect primarily the increasing cost of school fees, combined with rises in the cost of living.

79.   This, combined with lively illustrations, provides material that is easy to teach and fun to learn.

80.   This, combined with the economic upturn means that increasingly, there are skills and labour shortages.