Read the text and choose the CORRECT alternative of passive voice to fill out the blanks.
How towns have arisen
Most villages and towns on the British Isles came into being because of their favorable situation for trade.
Rather more than a hundred years ago, a great change came over the land. Many machines __________ about that time. Spinning and weaving, for example, which had previously been done by hand, __________ by machinery that __________ by water or steam-power.
The work which usually __________ in the houses of the people began to be carried on in large mills or factories, and workers found it convenient to live near them.
More and more factories __________ and men and women left the country districts in great numbers and crowded into towns.
Since then the movement of people into towns has been going on until now. England __________ with great cities.
All over Britain, and especially in those parts _____ the coal _____ for power is to be found, there are mining and manufacturing areas, such as the Lancashire cotton district, the Black county of Midland, and others. A great many towns ___________ close together in those districts, and a great many people live within a small area, so that the population is very dense.
(After “The British Isles, Their Life and Work” by S. Bryson and Maxton. Available in: http://englishstandarts.blogspot.com.br/2012/06/passive-voicetexts-proverbs-and.html. Access on: August 2015)