一堆英语问题（关于虚拟语气的）

题目

一堆英语问题（关于虚拟语气的）
1：even if he came this evening,he wouldn't solve the problem 这句话与过去事实相反,为什不用had+过去分词 与 would have +过去分词而却用过去形式?
2：he would have given you more help,but he has been so busy.这里面的has been 是什么东西?完成形态在虚拟语气里面不是要用had+过去分词吗?
3：i worte everything down lest i should forget it.这句话为什么是虚拟语气?我怎么看不出来?它与事实相反的地方在哪?
4：it'is strange that we meet here 这句话为什么是虚拟语气?
5：who put a fool would believe that
6：if only grandmother could see this together with us now 这句话为什么不是should而是could
7：he doesn't dare to go out in case he should be recognized 这句话意思是他不敢出去免得被认出来.但是这句话为什么是虚拟语气呢?那个地方是与现在相反?难道现在已经出去了?
8：though the girl had been suffering from the blood disease,she acted as if nothing had happend to her while facing her friends and relation 这里的suffering为什么加ing呢?
9：her accent suggest that she comes from south china come为什么加s?这句话不是应该省略了should而should后面应该用原型吗?
10：the expression on her face suggests that the secret.哎 这句话跟虚拟语气有什么关系?到底有啥关系呢?
11：what a pity considering his ability and experience he might have done better 并且后面为什么不用should或could而用might?

答案

1：even if he came this evening,he wouldn't solve the problem 这句话与过去事实相反,为什不用had+过去分词 与 would have +过去分词而却用过去形式?--------因为讲话的时候,是上午或者下午,还没有到晚上.2：he would have given you more help,but he has been so busy.这里面的has been 是什么东西?完成形态在虚拟语气里面不是要用had+过去分词吗?----------has been解释为“从过去到讲话时为止“,属于“过去”的概念.3：i worte everything down lest i should forget it.这句话为什么是虚拟语气?我怎么看不出来?它与事实相反的地方在哪?-------这不是虚拟语气,lest是连接词,后面的从句谓语结构是 should do -------should可以省略.4：it'is strange that we meet here 这句话为什么是虚拟语气?----------这也不是虚拟语气,只是句型要求：it is strange that -- - -(should) do sth --------其实,在这样的句型里面should并不可以省略.5：who put a fool would believe that --------就语法来说,这是错句.正确的句子是：
whoever put a fool would believe that -------我从来没有碰到这个句子,表达法应该是错的.6：if only grandmother could see this together with us now 这句话为什么不是should而是could --------if only这个虚拟语气的句子里面一般不用should.一般是would- --,或者是一般过去时或者过去完成时-------看句子的时间概念决定.7：he doesn't dare to go out in case he should be recognized 这句话意思是他不敢出去免得被认出来.但是这句话为什么是虚拟语气呢?那个地方是与现在相反?难道现在已经出去了?---------这里的in case与lest的语法功能相同-----请参考你的第三句.8：though the girl had been suffering from the blood disease,she acted as if nothing had happend to her while facing her friends and relation 这里的suffering为什么加ing呢?--------是过去完成进行时,从过去到讲话时为止已经持续了一段时间,并且很可能会延续下去.9：her accent suggest that she comes from south china come为什么加s?这句话不是应该省略了should而should后面应该用原型吗?10：the expression on her face suggests that the secret.哎 真不明白 这句话跟虚拟语气有什么关系?到底有啥关系呢?---------这里的suggest不是虚拟语气结构.在这里解释为“让人看出/ 听出”.
11：what a pity considering his ability and experience he might have done better 并且后面为什么不用should或could而用might?
------- 这里,should ,could和might都是正确的表达,是谁说的-------should不能使用?
我感觉,你的练习书里面有太多的语法上的或者理解上的错误,你的练习书是什么名称?