It Is Safest to Conclude That After 40 Years of Research

question 149

Multiple Choice

It is safest to conclude that after 40 years of research effort,the neurochemical bases of mood disorders

• A) is a fiction.
• B) will soon be discovered.
• C) has been found.
• D) remains mysterious.

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Definitions:

Verb Phrases

In grammar, a combination of a main verb and its auxiliaries (helping verbs) in a sentence, expressing action or state of being.

Syntax

The set of rules, principles, and processes that govern the structure of sentences in a given language, particularly the order of words and phrases.

Phonology

The study of the sound system in languages, including the rules for their sequence and structure.

Morpheme

The smallest grammatical unit in a language that has semantic meaning.