Few can contemplate without a sense of exhilaration the splendid achievements of practical energy and technical skill,
which, from the latter part of the seventeenth century, was transforming the face of material civilization, and of which, England was the daring pioneer.
A. which, from the latter part of the seventeenth century, was transforming the face of material civilization and of which,
B. which, from the latter part of the seventeenth century, were transforming the face of material civilization and of which,
C. which from the latter part of the seventeenth century, has transformed the face of material civilization and of which
D. which from the latter part the seventeenth century, had been transforming the face of material civilization and of which
E. which from the latter part of the seventeenth century has been transforming the face of material civilization and of which