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    精英家教网 > 高中英语 > 题目详情
    If it 　　for your help,we would be in serious trouble.
    A．isn’tB．aren’tC．hasn’t beenD．weren’t
    D
    句意为：要是没有你的帮助，我们会有很多麻烦。虚拟语气用在与现在事实相反的条件句中时，条件从句的谓语用动词的过去式。
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