77 the factory beforehand. Prefabrication does away with uncertainty because it means that the whole
building is made of standard parts the behaviour of which is known and has been tested.
151- Since land is extremely valuable it is important that ..................... . A) costs do not continue to rise
B) the building materials should also be expensive
C) people should not disagree as to the advantages of prefabrication
D) it does not remain out of use for long
E) building costs be reduced to a minimum
