Identify the subordinate (dependent) clause and specify what type of clause it is

Question

Identify the subordinate clause, and specify what type of clause it is (Noun Clause, Adjective Clause, or Adverb Clause)

I underline what I think is the dependent clause.

Jim is the guy who is sitting over there. I think its a noun phrase?

He was exhausted because he had just returned from Europe.   

Ben believes that Sarah will pass the test. 

What Dominic revealed about the Pentagon, was the absolute truth.

Tom, who had the best credentials, did not accept the President’s appointment.

Answer 1

Jim is the guy who is sitting over there. I think its a noun phrase?

Adjective Clause

This answers questions like: "what kind," which one"

"who" is the pronoun acting as the subject

"is sitting" is the verb

He was exhausted because he had just returned from Europe.  

Adverb Clause. It answers questions such as "where?", "when?", "how?", and "why?"

Why? He just returned from Europe.

Ben believes that Sarah will pass the test. 

Noun Clause

What Dominic revealed about the Pentagon, was the absolute truth.

"What Dominic revealed" is the noun clause because it has a subject (Dominic) and a predicate (revealed).

Try switching the Clause with a single noun and make sure it still makes sense. For example, Dominic revealed the absolute truth.

Tom, who had the best credentials, did not accept the President’s appointment.

This is an adjective clause. The group of words underlined act as an adjective or describe the noun, Tom, in this sentence. These should answer questions like: "what kind?" or "which one?". You should have one of the following formulas:

Pronoun/adverb + subject +verb

or

Pronoun/adverb as subject + verb

In this case, "who" is the pronoun acting as the subject and "had" is the verb

Answer 2

George, I’m giving the answers, although our role is generally to show HOW to get the answer.

“Who is sitting over there” is the adjective clause (NOT a noun phrase), modifying the noun “the guy”.

“Because he had just returned from Europe” is an adverb clause, as you thought, modifying the verb phrase “was exhausted”.

“That Sarah will pass the test” is a noun clause, fulfilling the function of direct object.

“What Dominic revealed about the Pentagon” is a noun clause, fulfilling the function of subject.

“Who had the best credentials” is an adjective clause, modifying the noun “Tom”.