描述如何使用零花钱 — 英语选择题
题目
Lily gets 50 yuan pocket money this month. She spends 30 yuan on storybooks and puts the rest into her piggy bank. Which sentence is RIGHT? A. Lily saves all her pocket money. B. Lily spends 50 yuan on storybooks. C. Lily saves 20 yuan in her piggy bank. D. Lily spends 20 yuan on storybooks.