长期带瘤生存能活多久:请教英语题目

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We could not have fulfilled the task in time if it ______ for their help

A.was not B.is not C.has not been D.hasn't been

The hotel______during the vocation was rather poorly managed.
A.as i stayed B.where i stayed C.which i stayed D.what i stayed
呵,把题目打错了,第一个选择题目的的选项C应当是had not been D项是has not been 是不一样的选项.

第一题选?应为had not been,因为根据主句的情态动词+现在完成时,可以知道虚拟语气是对过去的虚拟,所以用过去完成时(具体的语法内容相信你是知道的)

第二题选B.定语从句.A肯定不对,as引导的定语从句意为"正如..".而且从句内部是i stay,缺少一个和宾语之间的介词,所以不能选C,同理不选D.而从句的谓语stay是个不及物动词,所以在不缺句子主干成分的情况下,应用情态副词.故选B

1.虚拟条件句,应该为had not been
2.B
定语从句,在该句中where=in which

第一题的C\D选项有区别吗???
应为had not been

第一题的CD选项有区别吗??? 呵呵