A subordinating conjunction introduces a dependent clause in a complex sentence.
Here is an example:
I checked my emails when I arrived home.
The clause <em>I checked my emails </em>is independent, and <em>when I arrived home </em>is dependent, and it starts with a subordinating conjunction <em>when.</em>
The tone can portray the author's perception of his country because the tone will help the readers understand how the reader feel and his attitude towards his country.
The simple subject of this sentence is Matt Robins.
