1. 词数：100左右; 2. 参考词汇：零花钱—pocket money
One possible version：
Recently some students are talking about how to spend their pocket money. It seems that different students have different ideas about this problem.
Some students would rather save the money by putting in the bank. They think it’s a good idea to form the habit of saving, which will help them a lot in the future.
Some others choose to spend the money buying some books and think that it is the best thing to learn more knowledge when they are still young.
Still some others use the money to do things they are interested in. For example, they go to learn music, play sports or collect stamps.
These are all good ideas and should be encouraged as long as it is helpful for their future.