Answer: A) Modifies the verb.
Explanation for this question is being written.
Answer: A) Fully
Answer: C) Carefully
Answer: D) Well
Answer: B) Well
Answer: C) Bitterly
Answer: D) Quickly
Answer: A) Slowly
Answer: B) Nicely
Answer: B) Timidly
Answer: A) Quickly
Answer: C) Adverb of manner.
Answer: B) Easily
Answer: C) Merrily
Answer: A) Carefully
Answer: B) Loudly
Answer: B) Softly
Answer: B) Accidentally
Answer: A) Adverb
Answer: A) Diligently
Answer: B) Readily
Answer: A) Tirelessly
Answer: B) Quickly
Answer: D) QUICKLY
Answer: D) Carefully
Answer: B) Adverb
Answer: D) Safely
Answer: A) Properly
Answer: A) Not
Answer: C) Excitedly
Answer: A) Beautifully
Answer: C) Gracefully
Answer: A) 'How' Adverb.
Answer: C) Happily
Answer: A) Firmly
Answer: A) Neatly
Answer: D) Loudly
Answer: B) Slowly
Answer: C) Softly
Answer: B) True
Answer: B) Gracefully
Answer: A) In a secretive or stealthy manner.
Answer: A) Heavily
Answer: A) He speaks clearly.
Answer: B) Thoroughly
Answer: A) Always
Answer: B) Strongly
Answer: A) How
Answer: C) Adverbs