根据下列材料请回答 67～70 题：
第 67 题 What does the author mean by“the Glastonbury Festival has gone from strength to strength”？
Which of the following words best describes mum？
听下面一段材料，回答 17～20 题。
第 17 题 What happened to the shop in one month？
The writer doesn’t believe that＿＿＿．
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