Adverb Clauses of Cause or Reason

Adverb Clauses of Cause or Reason are introduced by the Subordinating conjunctions
because, as, since, that.
Because I like you, I shall help you.
I did it because I wanted to.
I did not buy it because I did not like the look of it.
He thinks, because he is rich, he can buy justice.
Since you are so clever you will be able to explain this.
Since your father is not at home, I will ask you to take the message.
Since you swear to serve me faithfully, I will employ you.
I am glad that you like it.
He was very pleased that you have passed.
As he was not there, I spoke to his brother.