Johannes Gutenberg was a German craftsman and inventor, and he is best known for the Gutenberg Press, an innovative printing press machine that used a movable type. It was invented in the 14th century and remained the standard until the 20th century. Before Johannes Gutenberg, printing was limited in the number of editions made and nearly exclusively decorative, used for pictures and designs. The material to be printed was carved into wood, stone, and metal, then rolled with ink or paint, and transferred by pressure to parchment or vellum. Gutenberg made printing cheap.1. What is the text mostly about?
A. The life of Johannes Gutenberg
B. The inventors in the 14th century
C. Gutenberg's printing press machine
D. The difficulties in printing
E. The low cost of printing

2. What was the benefit of Gutenberg's machine?
A. Printing was inexpensive.
B. Printing was easier.
C. Printing was lighter.
D. Printing was simpler.
E. Printing was faster.

3. When did people stop using Gutenberg's printing machine?
A. Before the 14th century
B. At the beginning of the 14th century
C. After the 14th century
D. Before the 20th century
E. In the 20th century​​