Question

求英语高手分析下面三道选择题 解释越详细越好

41. -- Have you ever been to Shanghai, Mary?
-- Yes. I _______ there for three clays with my parents last month.
A. have gone B. have been C. went D. was
42. -- Please bring little Tom next time you come to Anhui.
--______, thank you.
A. I will B. I hope so C. That's right D. My pleasure
47. -- Why didn't you go to the cinema with us this afternoon?
-- I ______ at the station for my uncle from Beijing.
A. was waiting B. have waited C. am waiting D. will wait
答案是DAA 求解释

Answer 1

41 B three days 是一段时间，last month 表示过去，现在已经回来，用过去完成时所以是have been
42 A
47 A did not 过去时

Answer 2

41. -- Have you ever been to Shanghai, Mary?
-- Yes. I _______ there for three days with my parents last month.
A. have gone B. have been C. went D. was
答：D 句中有明确的过去时间last month, 不用完成时，排除AB。for 一段时间可以用于一般过去时，表状态的动词如was, were, 例：For 60 years, Edison was the leading inventor of the world.
42. -- Please bring little Tom next time you come to Anhui.
--______, thank you.
A. I will B. I hope so C. That's right D. My pleasure
答：A。 I will. 表示“愿意，乐意”去。D. My pleasure一般用于帮了别人，别人表示感谢时的答语,意为能为你效劳是我的pleasure.
47. -- Why didn't you go to the cinema with us this afternoon?
-- I ______ at the station for my uncle from Beijing.
A. was waiting B. have waited C. am waiting D. will wait
答：A。 问过去发生的事，回答当时在做某事，所以没去。
为什么下午没和我们一起去看电影？
因为我在车站等我北京来的叔父。

Answer 3

1.B 回答的是过去完成时，说明已经去过上海了
2.D 可能是这个
3.A 说明那时一直在车站等叔叔

追问

答案 是 DAA 求解释

追答

真惭愧，六级过了，这个错这么多。