Variables such as individual and corporate behavior ______ nearly impossible for

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问题 Variables such as individual and corporate behavior ______ nearly impossible for economists to forecast economic trends with precision.

选项 A、make
B、make it
C、making
D、makes it

答案 B

解析句子结构题。本题考查it充当形式宾语的用法。根据句子结构，主语是variables，空格中需要填人谓语成分，空格后面的nearly impossible充当补语成分，for economists…短语充当真正的宾语，谓语动词后面必须由形式宾语讧补充完整，故B 为答案。

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