Over the past decades, sea ice _______ in the Arctic as a result of global warming.


  1. A.
    had decreased
  2. B.
    decreased
  3. C.
    has been decreasing
  4. D.
    is decreasing
C
解析：
考查時(shí)態(tài)。句中有Over the past decades謂語(yǔ)動(dòng)詞用現(xiàn)在完成時(shí)或現(xiàn)在完成進(jìn)行時(shí)。
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

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Place: 36, Dongsanhuan Beilu, Chaoyang District

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Mix and match: Story of Puppets tells of a fairy, Zixia, who looks for true love in the human world．After watching a puppet play Peony Pavilion, she thinks there must be true love in reality, so she uses magic to turn the puppet characters into humans, wanting to fall in love with the puppet hero．But things don’t go as she planned．．．Li Liuyi, the director of the play has made several successful attempts to present different traditional operas in one play．This time he combines Peking Opera, Kunqu Opera, Pingju Opera along with a band, using the structure of modern drama．

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