Britain might still be part of France if it weren’t______a disastrous flood 200,000 years ago, according to scientists from Impe

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问题 Britain might still be part of France if it weren’t______a disastrous flood 200,000 years ago, according to scientists from Imperial College in London.

选项 A、upon
B、with
C、in
D、for

答案D

解析 If it were not for或者If it had not been for属于虚拟语气中的常用语法结构,意为“要不是……,如果没有……”。与现在事实相反时用If it were not for,而与过去事实相反时用If it had not been for。
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