Paper was first      about 2,000 years ago, it has been made       silk, cotton, bamboo, and wood. People learned to write words on paper to make a book. And because there weren’t many books,        people learned to read. Then printing was invented in China. The first printed books were made by        ink on a wooden block and holding the paper against it. When printing was developed greatly        the beginning of the 11th century, books could be produced more quickly and       . ___     , more people learned to read. After that, knowledge and ideas spread quickly,        a way that can be compared        the        of the Internet in the 20th century.

A． create B． created C． creating D． creates

A． in B． of C． from D． by

A． little B． a little C． few D． a few

A． put B． putting C． puts D． puting

A． at B． in C． by D． on

A． cheap B． cheaply C． cheaper D． cheapest

A． Because B． so that C． As a result D． because of

A． on B． in C．by D． at

A． at B． with C． by D． about

A． introduction B． introduce C． introduced D． introducing