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https://online2.tingclass.net/lesson/shi0529/0001/1112/tingclass_606dnph.mp3

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Want me for lunch this Saturday?
Sorry, I can't. I'm busy.
What are you doing?
I always do volunteer work on the first Saturday of every month.
What kind of volunteer work?
I help out at the Children's Hospital. I help plan activities.
Oh, yeah?
Yeah, it's exciting. This month, we're doing crossword puzzles.