The most accurate way to describe the excerpt is, it is a dependent clause.
The<em> dependent clause</em> does not express a complete meaning of a sentence. it includes a subject and a verb. These clauses include adjective clauses, adverb clauses, and noun clauses.
In the above sentence, <em>"since our priority was to identify the origin of the alien’s signal."</em>
It contains adverbial clause.
An adverbial clause begins with the subordinating conjunction such as if, although, because and so forth.
In it, <em>'since'</em> is subordinating conjunction and <em>'our priority'</em> is an adverbial clause.
Answer:
"Sam never does his homework" the teacher said sadly.
Explanation:
The sentence is incorrect.
Why? well because it does not use correct punctuation
When using dialogue you must end the dialogue with some sort of punctuation. it could be any type of punctuation such as a comma or a exclamation mark but if it does not have any of those then the sentence is not grammatically correct
The answer to your question is letter A