单选题 If you had worked hard before, you ______ worried about the coming examination now.
A. would not be B. would not have been
C. are not D. will not be

【正确答案】 A

【答案解析】[解析] 这是时态交错的一种虚拟语气，条件句是与过去事实相反的假设，用过去完成时，而主句谈论的是与现在事实相反的结果，用虚拟现在时would not be worried。would not have been worried是虚拟条件句过去时的结果主句。are not worried是陈述语气一般现在时。wm not be worried是陈述语气将来时。