Answer: C) For three hours.
Explanation for this question is being written.
Answer: D) For the exam.
Answer: B) Time, place, manner, reason, purpose and manner.
Answer: B) I completed my homework diligently.
Answer: B) The dog barked while it was outside.
Answer: B) At the bus stop.
Answer: A) Quite patiently.
Answer: C) Once a week.
Answer: C) She quickly finished her homework before dinner.
Answer: A) Adverb
Answer: D) To avoid waking the baby.