几道英语题
1.Mr.Fordhasjustarrived,butIdon'tknowhe____untilyesterday.A.willcomeB.wascomeingC.com...
1.Mr.Ford has just arrived, but I don't know he ____ until yesterday.
A.will come B.was comeing C.comes D.had come
正确答案是B 为什么?
2.Sorry,I____you ___for me.
A.don't know; are waiting B.didn't know; are waiting
C.don't know; were waiting D.didn't know; were waiting.
正确答案是C,为什么?
3.She ___her mother's work since she was admitted into hospital.
A.is doing B.has been done C.has done D.has been done
正确答案是C,为什么? 展开
A.will come B.was comeing C.comes D.had come
正确答案是B 为什么?
2.Sorry,I____you ___for me.
A.don't know; are waiting B.didn't know; are waiting
C.don't know; were waiting D.didn't know; were waiting.
正确答案是C,为什么?
3.She ___her mother's work since she was admitted into hospital.
A.is doing B.has been done C.has done D.has been done
正确答案是C,为什么? 展开
2个回答
展开全部
1、B:时间状语until yesterday的限制,这里只能用过去时,排除AC,而D选项为过去完成时,但这个人今天刚刚到,昨天他没到,come不可能发生在yesterday,故不是”过去的过去“,D不行,综上B正确
2、C:暗含潜在的过去时间,过去一直在等,说话时“等的”动作结核枣束,不能用现在进行时,而说话当时才“不知道的”,以前的是根本没意识到,用现在时。
3、C:since引导的状语从句,主句谓语用现段衡在完成时,而且改燃拆根据句义是主动的,不是被动的
2、C:暗含潜在的过去时间,过去一直在等,说话时“等的”动作结核枣束,不能用现在进行时,而说话当时才“不知道的”,以前的是根本没意识到,用现在时。
3、C:since引导的状语从句,主句谓语用现段衡在完成时,而且改燃拆根据句义是主动的,不是被动的
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