Homework exists so the school can reinforce what you learned at school.
Answer:
C
Explanation:
he feels nervous about presentations
Answer:
This is a dependent clause.
Explanation:
A dependent clause is a group of words that contains a subject and verb but does not express a complete thought. A dependent clause cannot be a sentence.
"In his first year in the White House" does not express a complete thought, making it a dependent clause.