Over the past decades , sea ice in the Arctic as a result of global warming .A. had decrea
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解决时间 2021-01-02 10:37
- 提问者网友：听门外雪花风
- 2021-01-02 03:48
Over the past decades , sea ice in the Arctic as a result of global warming .
A. had decreased
B. decreased
C. has been decreasing
D. is decreasing .
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- 五星知识达人网友：动情书生
- 2021-01-22 06:35
A. had decreasedB. decreased C. has been decreasing D. is decreasing .解析：此题考查动词时态，由句中的时间状语从句“over the past decades”，可知句子的谓语动词要用现在完成时或现在完成进行时态。
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- 1楼网友：白昼之月
- 2021-01-22 07:42
正好我需要
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