WE MIGHT STOP HERE IF YOU DON'T CHANGE YOUR WAY OF SPEAKING. A....

Câu 20: We might stop here if you don't change your way of speaking.

A. We might stop here unless you change your way of speaking.

B. We might stop here if you change your way of speaking.

C. We might stop here if not you change your way of speaking.

D. We might stop here unless you don't change your way of speaking.

Read the following passage and blacken the letter A, B, C or D on your answer sheet to indicate the

correct word for each of the blanks in the following question.

Library is a collection of books and other informational materials made available to people for

reading, study, or reference. The word library comes from liber, the Latin word for "book" (21)

____________ library collections have almost always contained a variety of materials. Contemporary

libraries maintain collections that include not only printed materials such as manuscripts, books,

newspapers, and magazines, but also audio-visual and online databases. In addition, to maintaining

collections within library buildings, modern libraries often feature telecommunications links that provide

users with access to information at remote sites.

The central mission of a library is to collect, organize, preserve, and provide access to knowledge and

information. In fulfilling this mission, libraries preserve a valuable record of culture that can be passed

down to (22) ___ generations Libraries are an essential link in this communication between the past,

present, and future. Whether the cultural record is contained in books or in electronic formats, libraries

ensure (23) ___ the record is preserved and made available for later use. People use library resources to

gain information about personal interests or to obtain recreational materials such as films and novels.

Students use libraries to supplement and enhance their classroom experiences, to learn (24) ___ in

locating sources of information, and to develop good reading and study habits. Public officials use

libraries to research legislation and public policy issues. One of the most valued of all cultural

institutions, the library (25) __ information and services that are essential to learning and progress.