Question

Tell how each parenthesized noun clause is used:
Subject, subject complement, direct object of verb or object of preposition.
• The thief confessed "that he had stolen the bricks from the site".
• The fresh air is "what I like best about the farm".
• The bill must be paid by "whoever purchased the lumber".
• "What you say about the Mideast problem" is true.
• "Whatever you tell me" shall remain our secret.