Fill in the Blanks (Reading & Writing)

The wool industry once formed the economic backbone of many rural regions, with entire towns dependent on shearing, spinning and weaving. Mechanisation gradually —replacedrepairedrelayedrelated many manual processes, reducing the number of workers needed at each stage of production. Despite competition from synthetic fibres, wool remains —valuedvaluesvaluablevaluing for its warmth, durability and biodegradability, qualities that continue to —sustainsuspendsurrendersummon demand among environmentally conscious consumers.