Directions: In the following passage, some of the words/sentences...

Directions: In the following passage, some of the words/sentences have been left out, each of which has been indicated by a letter. Find the suitable word/sentence from the options given against each letter and fill up the blanks with appropriate word/sentence to make the paragraph meaningful.

Whatever else language might be e.g. a method of communicating, something to aid thought, a form of entertainment or of (A) aesthetic appreciation it is first and foremost a system that ____ (B) ____ people who speak it to produce and understand linguistic expressions. The ____ (I) ____ is what linguistics aims to discover. But where do we look for this system? It is a ____ (II) ____ that language exists in people’s heads. After all, we talk of ____ (III) ____ languages. This also happens to be the belief of the kind of linguistics that this book aims to ____ C ____ : in a nutshell, the linguistic system that enables us to ‘speak’ and ‘understand’ a language is a body of knowledge which all speakers of a particular language have come to acquire. If this is true, then our means for investigating language are fairly ____ (D) ____ − we cannot, for instance, subject it to direct investigation, as delving around in someone’s brain is not only an ethical minefield, but unlikely to tell us very much given our current level of understanding of how the mind is instantiated in the brain. We are left, therefore, with only indirect ways of investigating language.