Li Hua and Wang Hai are two students of Senior Three. 41 of them work hard but they have various learning methods.
Li Hua listens to her teachers 42 (attentive) and asks her teacher 43 help as soon as possible if she has some problems. Because of this, she spends less time 44 (do) her homework, so it is 45 (certainly) that she can keep energetic in the day. However, Wang Hai has quite a 46 (difference) way of learning 47 (compare) to Li Hua. He likes to sit up late at night doing his homework, so he often feels sleepy in class. As a result, he misses lots of key points, 48 makes it difficult for him 49 (concentrate) on what he is doing.
In my opinion, Li Hua learns more effectively in class and has more free time to enjoy herself. So I prefer 50 (she) learning method.