1. 可行2. 因为一百元可以在一些大型超市或者网上购物平台购买到一些实用的英语学习资料，如英语词汇书、英语听力材料等，这些资料可以帮助提高英语水平。

3. 另外，也可以选择购买一些英语学习APP或者在线课程，这些都是比较便宜的选择，可以帮助提高英语水平。同时，也可以选择购买一些英语小说或者电影，这样可以在娱乐的同时提高英语水平。

Today，my mother gave me one hundred. i plan to buy some things. Next week is my friend's birthday so i will buy her a gift of 30RMB. I will also buy some fruits and vegetables for my families, which will cost 20RMB. For the balance of 50RMB, i will buy myself a pair of shoes because my shoes are wet. I think i can make good use of the moneyi have.