It may be not needed but I would like to start the explanation by stating what etymology is. Etymology is the study of the origin of the words, their roots and their changes over different periods of time. Having said this, let us now describe why etymology is significant in the development of languages. The importance of the study of the origin, the roots and the constituents of words comes crucial when trying to form bigger and more complex vocabulary as ones advances in their academic life. it is also a crucial discipline to analyze when studying a second or a foreign language. Languages sometimes share origins in word formation, and knowing this facilitates the learning process. For example:
1.- The English word Marinade comes from the French Mariner which also comes from the Latin Marinare that means to soak in cooking liquid. In Spanish the word to mean the same is Marinar.
2.- The English Word Blouse comes also from the French Blouse /blus/ it is written the same but the pronunciation changes. And in Spanish the word is Blusa.
By analyzing these examples we can see that knowing the etymology of a word helps us learn vocabulary from different languages that share their words' roots and origins.
Comma. The comma is the punctuation symbol that has the most uses.
It serves a variety of purposes, but its two primary ones are (a) to interrupt the flow of thought with unnecessary expressions and (b) to separate elements to make the relationships between them more clear.
The comma is the most understated punctuation mark. It doesn't make a big deal out of itself or the material it separates or sets off. Examples of comma usage would only elicit a chorus of "duhs," as it is so widely used.
It suffices to say that a comma is typically the safe option to set off information and separate elements, provided that it doesn't interfere with any functions that are specifically reserved for the colon, semicolon, or parentheses.
Learn more about commas
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A guest speaker presented yesterday's lecture – uses active voice
.
Answer: C
Explanation
An active voice can be identified if the noun or the subject of the sentence makes an action or verb on the object.
Whereas in a passive voice, the object had made action or verb upon the subject or noun of the sentence.
These are taken in accordance with subject-verb agreement.
In most sentences, passive voice can be easily found out by the presence of the word ‘by’.
Among all the above options except C, each sentence uses the word ‘by’.
C. It has an action to the verb and a direct object making it transitive