2. 外语
  3. If all of the ice in Antarctica and Greenland ______, sea level could rise 65 to 80 meters.

If all of the ice in Antarctica and Greenland ______, sea level could rise 65 to 80 meters.

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问题 If all of the ice in Antarctica and Greenland ______, sea level could rise 65 to 80 meters.
选项 A、to melt
B、melted
C、melting
D、is melting
答案B
解析 In this present/future unreal conditional sentence, melted is the correct verb form in the result clause.
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