补全对话，根据对话内容及首字母提示补全单词 
A: I used to spend all my pocket money on clothes and snacks. How a you?
B: I u  to buy new comic books every week. Now, I try to save some money for charities.
A.: Which charity do you like  ?
B: UNICEF, because it spends a l  of money on schools. I think education is so i  that every child should go to school. And you?
A: I want to d   money t World Wide Fund for Nature b I love animals.
B: Yes, p  wildlife is important. My mother also told me that pollution is such a serious problem in many parts of the world that more action ought to be taken to p  it.