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67. Affording strategic proximity to the Strait of Gibraltar, Morocco was also of interest to the French throughout the first half of the twentieth century because they assumed that if they did not hold it, their grip on Algeria was always insecure. (A) if they did not hold it, their grip on Algeria was always insecure (B) without it their grip on Algeria would never be secure (C) their grip on Algeria was not ever secure if they did not hold it (D) without that, they could never be secure about their grip on Algeria (E) never would their grip on Algeria be secure if they did not hold it 问: 1) 此题是如何判断对现在虚拟的?without it their grip on Algeria would never be(为什么不是would have never been) secure ?
2)assume 从句虚拟时候,应该是加should,且最好省略,但是此时为什么还用would呢? without it their grip on Algeriawould never be secure
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