THE PARAGRAPH FOLLOWING THE PASSAGE MOST PROBABLY DISCUSSES ______...

64. The paragraph following the passage most probably discusses _______

A. the gradual inclusion of exposed iron in traditional styles of architecture

B. further improvements in iron processing methods

C. the return to traditional building materials for use in commercial structures

D. the decreased use of stone and timber as a building material

B. Phần viết:

Part I. Finish each of the following sentences in such a way that it means the same as

the sentence printed before it.