4. Complete the sentence: When the leader talks, it's difficult to understand his cues. A. slow B. slowly C. quick D. quickly 5.Which sentence describes the picture using adverb of manner? A. Mr. Luis is a friendly teacher. B. The pupil listens attentively to Mr. Luis. C. He is very happy listening to their teacher. D. Mr. Luis is wonderful for he explains the lesson to his pupil.​