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20. raining hard for 3 hours without stopping.21.A. It is   B. It was   C. It has beenD. I

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解决时间 2021-01-03 07:01
  • 提问者网友:孤山下
  • 2021-01-02 12:49

20. raining hard for 3 hours without stopping.
21.
A. It is   
B. It was   
C. It has been
D. It had been
最佳答案
  • 五星知识达人网友:夜余生
  • 2021-01-02 13:12
A. It is   B. It was   (答案→)C. It has beenD. It had been解析:可联系答.案.网客服索取。
全部回答
  • 1楼网友:鸠书
  • 2021-01-02 14:19
就是这个解释
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