2.基本结构:should/would + have + been +现在分词 3.例子:He told me that by the end of the year he would have been living there for thirty years.他告诉我,到年底时,他就在那住了30年了。 高中英语必修三语法知识 使用被动语态应注意的几个问题: ...
答案与解析:have后加had 句意: 要不是下雨,我们昨天会有一次愉快的旅行。对过去的虚拟用should have done结构。 5.He had telephoned to inform me of your birthday,or I would have known nothing about it. 答案与解析:去掉had?or前的句子不是虚拟条件句。
In managing, I will make expensive mistakes of commission and will also miss many opportunities, some of which should have been obvious to me. At times, our stock will tumb...
例如:I have been here since five months ago. 我在这儿,已经有五个月了。 3) since +从句(一般过去时)。 例如:Great changes have taken place since you left. 你走后,变化可大了。 比较since和for since 用来说明动作起始时间,for用来说明动作延续时间长度。
A. must have taken B. may have taken C. may have been taken D. should have been taken 7、Since this road is wet and slippery this morning, it ___ last night. A. must rain B. was raining C. must have rained D. may rain 8、She...
更多内容请点击：高考英语语法查漏-\-情态动词和虚拟语气,题型全覆盖!