B Need of greater building varieties in modern life
C Restoration of ancient civilizations
D Evolution in style
E factors affecting modern architecture
F A social art
5.Some buildings are so well constructed that they are not only useful______.
6.Ancient Greek and Roman architectural styles, which were restored during renaissance, were still influential _____.
7. As modern life becomes more complex, people have to put up many different kinds of buildings _____.
8. The use of new building materials and the introduction of such new technology as the elevator and the air-conditioner have played an important role ______.
A to meet their needs
B but also beautiful to look at
C in the development of modern architecture
D to design more buildings
E even in the 20th century
F to outlast their original use
KEY: C A B E B E A C