【题目】---Will you go to the picnic tomorrow?

---Not______my dear dog is allowed to accompany me.

A. ifB. untilC. unlessD. when

【答案】C

【解析】

考查条件状语从句。---你明天去野餐吗?---如果我的狗不允许陪伴着我的话。原句应该表达为I will not go to the picnic tomorrow if my dog cannot accompany me.此处If not相当于unless“除非”, 只不过这里主句简化成了not,故选C

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