Why _did't_they_go_(not go)to see the play yesterday?-Because they have _seen_(see)it before.讲一下为什么这么填?有懂英语的朋友给解释一下哈!谢谢!

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Why _did't_they_go_(not go)to see the play yesterday?-Because they have _seen_(see)it before.讲一下为什么这么填?有懂英语的朋友给解释一下哈!谢谢!
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Why _did't_they_go_(not go)to see the play yesterday?-Because they have _seen_(see)it before.讲一下为什么这么填?有懂英语的朋友给解释一下哈!谢谢!
Why _did't_they_go_(not go)to see the play yesterday?-Because they have _seen_(see)it before.讲一下
为什么这么填?有懂英语的朋友给解释一下哈!谢谢!

Why _did't_they_go_(not go)to see the play yesterday?-Because they have _seen_(see)it before.讲一下为什么这么填?有懂英语的朋友给解释一下哈!谢谢!
先分析你所说的英语断句：他们昨天为什么去/没去看那场戏剧?所以第一个空格应填写“didn't”
因为他们在之前已经看过了.这表示他们以前已经看过,需用现在完成时态,所以应填写“seen”

原题答案错误。
本题正确答案应为：Because they had seen it before.
昨天没去，是因为昨天之前看过了，时间为“过去的过去”，强调“已经”，应使用过去完成时。

第一空中的动作发生在过去，而且go to the movie 是短暂的动作，所以用didn't；而前面用了过去式，后面就直接用现在时了；
第二空，意思是 他们已经看过这部电影了，所以用现在完成时，结构是have done

Why _did't_they_go_(not go)to see the play yesterday?-Because they have _seen_(see)it before.讲一下为什么这么填?有懂英语的朋友给解释一下哈!谢谢! Why did you go to the home of Mr Green last night?改同义句_did you go to Mr Green's house_last night? _did he wave to?His companiona)whob)whosec)whichd)what _did she go to see her father ._did she want her father to come.A.Either ,or B.Not,only C.No sooner ,than D.Neither ,nor ＷＨＹ? why? WHY? WHY? why why? why why why why 到达那里他花了多长时间 中译英_ _did it take him_ _ there? 到达那里他花了多长时间 中译英_ _did it take him _ _there?（ ） _did you start riding?_ I was eight years old.when,when?when,since?为什么 求下面填空题:1.Which dinosaur had two legs?_did.They ate_.