The invention of the typewriter was a great to communication and printing.A. contributionB

问题补充：

The invention of the typewriter was a great to communication and printing.

A. contribution

B. devotion

C. revolution

Dconstruction

答案：

(答案→)A. contribution

B. devotion

C. revolution

D. construction

解析：本题的含义是打印机的发明对于印刷行业所起的贡献很大，contribution表示贡献的意思，故本题选C。