SVA Rule #3. 

A non-essential clause describes a noun, often (but not always) the noun that is the subject of a sentence. It is known as a non-essential clause because the description or information it provides is not essential to the meaning of the sentence – it’s more like an interruption, which means it can be removed without causing any major grammatical problem or change in meaning. Non-essential clauses have these identifying features:

  • They are surrounded by commas.
  • If they are removed from a sentence, the sentence will still make perfect grammatical sense.
  • They often begin with a “w-word” (or relative pronoun), such as which, who, whose, and where, that refers to the noun immediately preceding it.
  • They are usually followed by verbs.

The Trojan horse, which included the Greek soldiers hidden within it, was hauled through the gates of Troy.

The phoenix that arose from the ashes has scattered cinders everywhere.

 Example #6. 

Find the main subject and verb by removing the non-essential adjective clause.

 Mary, whose mom is a nurse, sits behind me in class.

The author, whom many critics blasted, has written a best-seller.

The school library, which is next to the cafeteria, is my favorite place in the school!

My friend Kara, who made an A on our math test today, is coming over to help me study.

The Bluenose, which is engraved on the Canadian dime, was a famous Nova Scotia schooner.

 

Click to see the correct answer Mary, whose mom is a nurse, sits behind me in class.
The author, whom many critics blasted, has written a best-seller.
The school library, which is next to the cafeteria, is my favorite place in the school!
My friend Kara, who made an A on our math test today, is coming over to help me study.
The Bluenose, which is engraved on the Canadian dime, was a famous Nova Scotia schooner.

 

 Example #7. 

Moroccan green tea, which is prepared with a healthy dose of sugar and mint leaves, were one of the most popular drinks across North Africa.

  1. NO CHANGE
  2. are
  3. was
  4. is

 

Click to see the correct answer The correct answer is choice D.