D               

题目分析：考查虚拟语气。句意：如果现在在七年级，你会做什么呢？ Now 表明是对现在的虚拟，当从句的主语为第三人称单数时，谓语动词若是系动词be时，可用 was 代替 were。但在倒装虚拟结构及 if I were you, as it were 中，只能用 were。如： Were I ten years younger, I would study abroad. 要是我还年轻十岁的话，我会去国外学习。故选D项。

考点 : 考查虚拟语气。