单选题 22.If you had worked hard before, you______worried about the coming examination now.
【正确答案】 A
【答案解析】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。wouldnot 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。will not be worried是陈述语气将来时。