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单项选择题


Questions 17-20 are based on the following passage. You now have 20 seconds to read questions 17-20.

What does the speaker suggest people should do when they go shopping

    A.Avoid over-packaging products.
    B.Use cloth napkins and cloth towels.
    C.Not buy any products with plastic wraps.
    D.Take their own bags to hold things in.
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