For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines: a never-ending flood of words. In 【C1】______ a job or advancing in one, the ability to read and comprehend 【C2】______ can mean the difference between success and failure. Yet the unfortunate fact is that most of us are 【C3】______ readers. Most of us develop poor reading 【C4】______ at an early age, and never get over them. The main deficiency 【C5】______ in the actual stuff of language itself—words. Taken individually, words have 【C6】______ meaning until they are strung together into phrases, sentences and paragraphs. 【C7】______ , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing to 【C8】______ words or passages. Regression, the tendency to look back over 【C9】______ you have just read, is a common bad habit in reading. Another habit which 【C10】______ down the speed of reading is vocalization—sounding each word either orally or mentally as 【C11】______ reads.
To overcome these bad habits, some reading clinics use a device called an 【C12】______ , which moves a bar (or curtain) down the page at a predetermined speed. The bar is set at a slightly faster rate 【C13】______ the reader finds comfortable, in order to "stretch" him. The accelerator forces the reader to read fast, 【C14】______ word-by-word reading, regression and subvocalization, practically impossible. At first 【C15】______ is sacrificed for speed. But when you learn to read ideas and concepts, you will not only read faster, but also your comprehension will improve.
【C1】______

A. applying
B. doing
C. offering
D. getting