I believe this is true, because addressing the reader's name is sort of informal and not suitable in a cover letter.
<u>Explanation:</u>
<em>Remember, </em>an adverb often refers to a word that <em>modifies or describes</em> a verb, or an entire sentence. Note, the bolded word indicates the adverb in each sentence below:
<em>1) Priyanka is sitting in </em><em>front.</em>
The adverb distinction here is that it answers the question of where? In other words, where is Priyanka sitting? in front.
<em>2) Rahul is </em><em>inside.</em>
This adverb also answers the question of where? In other words, where is Rahul? inside.
<em>3) The car was running </em><em>fast.</em>
The adverb here answers the question of manner? In other words, in what manner was the car running? fast.
<em>4) Honey sit </em><em>here.</em>
This adverb also answers the question of where? In other words, where should "Honey" sit? here.
It is a simple sentence.
A simple sentence contains one independent clause - which is the case with sentence 7. There is one subject (they) and one verb (rule), which means that it is a simple sentence (because of one verb only). A dependent clause wouldn't be able to stand on its own, and sentence 7 obviously can, which is why it is not dependent.
