Long-range weather______are often made by studying the orbits of the moon.

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问题 Long-range weather______are often made by studying the orbits of the moon.

选项 A、predicting
B、predictions
C、predicted
D、predictors

答案B

解析空格后面是动词，所以空格上应该填的是能够充当主语的名词。从语义上看，主语应该是“天气预报”，所以(B)predictions是正确答案。“天气预报”也可以表达为weather forecast。

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