阅读对话，回答问题。
Li Ming: What did you do yesterday?
Jenny: I went shopping with my mother.
Li Ming: What did you buy?
Jenny: I bought some gifts.
Li Ming: Are you getting ready for Christmas?
Jenny: Yes. Would you like to help us put up our Christmas tree?
Li Ming: Great!
1. What did Jenny do yesterday?
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2. Who did Jenny go shopping with?
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3. What did Jenny buy?
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4. Does Li Ming like to help Jenny put up the Christmas tree?
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