2. 外语
  3. He said it was impossible for ______ a mistake in a computer’s calculation, so you can rely on that.

He said it was impossible for ______ a mistake in a computer’s calculation, so you can rely on that.

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问题 He said it was impossible for ______ a mistake in a computer’s calculation, so you can rely on that.
选项 A、there being
B、there would be
C、there to be
D、there was
答案C
解析 考查不定式的用法。it is impossible后需接不定式作句子的主语(it为形式主语)，该不定式若需逻辑主语的话，用for来引导，因此选C。there being作状语时常为独立主格结构，表示原因，如：There being no taxi，we had to walk. (因为没有出租车，我们只好走路。)还可充当介词宾语，如：John was relying on there being another opportunity. (约翰等待另一个机会。)
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