请帮我解释一个英语问题,请说明原因
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请帮我解释一个英语问题,请说明原因
I don't think that Tom could have finished his homework last night,(
选项为:A.did he B.could he C.didn't he D.hasn't he
为什么要用did反意,不能用could?
I don't think that Tom could have finished his homework last night,(
选项为:A.did he B.could he C.didn't he D.hasn't he
为什么要用did反意,不能用could?
选择A(100%的把握).
复合句的反意疑问句一般看主句,但主句的主语为第一人称时要看从句,并且要注意否定转移.从句中的could have finished ...last night 表示对过去情况的猜测,译为“我想,昨天Tom没有完成作业,是吗?”故反意疑问句要用一般过去时态,肯定形式.
复合句的反意疑问句一般看主句,但主句的主语为第一人称时要看从句,并且要注意否定转移.从句中的could have finished ...last night 表示对过去情况的猜测,译为“我想,昨天Tom没有完成作业,是吗?”故反意疑问句要用一般过去时态,肯定形式.