根据对话内容和首字母提示补全单词，每空一词。

A: It's Friday today. What's your p for this weekend, Sally?

B: I'm going to the park with my cousin on Saturday. He has a new c We can take photos there.

A: How about Sunday?

B: We will go shopping. My mum's birthday is c . I will buy a p for her.

A: What will you buy?

B: I'm not sure. I don't have much money. I have o twenty yuan. Maybe I can buy a book. She likes reading.

A: Good idea.