there be句型中带情态动词的完成时态的反意疑问句如There must have been more than three hundred students in our school ten years ago.这一句话的疑问部分是“Isn't there?”还是别的什么?请给予详细讲解.

there be句型中带情态动词的完成时态的反意疑问句如There must have been more than three hundred students in our school ten years ago.这一句话的疑问部分是“Isn't there?”还是别的什么?请给予详细讲解.
there be句型中带情态动词的完成时态的反意疑问句
如There must have been more than three hundred students in our school ten years ago.
这一句话的疑问部分是“Isn't there?”还是别的什么?
请给予详细讲解.

there be句型中带情态动词的完成时态的反意疑问句如There must have been more than three hundred students in our school ten years ago.这一句话的疑问部分是“Isn't there?”还是别的什么?请给予详细讲解.
正确答案应该是 weren't there?
there be 的反义疑问句用 相应的谓语动词+there(省略主语代词）
D．must表示推测 ,其疑问部分必须与must 后面的主要动词相呼应.如：
①对现在动作或存在的情况的推测 ：
You must know the answer to the exercise,don't you?你一定知道这项练习的答案,是不是?
That must be your bed,isn't it?那一定是你的床,是吗?
②对过去发生的动作或存在的情况的推测：
a 表示肯定推测
（一）句中陈述部分没有表示过去的时间状语,这时疑问部分中的动词就用
现在完成时.（haven’t / hasn’t + 主语）
You must have told her about it,haven’t you?你一定把这事告诉她了,是吗?
（二）陈述部分有表示过去的时间状语,疑问部分的动词就用
一般过去时.（didn’t + 主语）
She must have read the novel last week,didn’t she?她上星期一定读了这本小说了,是吗
这题有具体的时间状语.所以用一般过去时提问

一般应试题是这样，也有特例，太麻烦了

weren't there

答案是mustn't there?
there is a car ,他的翻译疑问句是isn't there？
there be句型的翻译疑问句要看three后的系动词是什么，如果是is,are ,was ,were,那么翻译疑问句就把他们提前就可以可以了
如果有情态动词，那就把情态动词提前就可以了，不用考虑完成时
但是如果没有情态动词就得另当别论了...

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答案是mustn't there?
there is a car ,他的翻译疑问句是isn't there？
there be句型的翻译疑问句要看three后的系动词是什么，如果是is,are ,was ,were,那么翻译疑问句就把他们提前就可以可以了
如果有情态动词，那就把情态动词提前就可以了，不用考虑完成时
但是如果没有情态动词就得另当别论了

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weren't there？
must 表推测时的反意疑问句 ，其疑问部分与must无关，由must后面的谓语动词
形式并结合时间状语来决定。例句本应该是haven’t there？但ten years ago决定
了只能用一般过去式，所以是weren't there？
He must be a new student, isn't he?
H...

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weren't there？
must 表推测时的反意疑问句 ，其疑问部分与must无关，由must后面的谓语动词
形式并结合时间状语来决定。例句本应该是haven’t there？但ten years ago决定
了只能用一般过去式，所以是weren't there？
He must be a new student, isn't he?
He must have finished his homework now,hasn't he?
He must have finished his homework last night,didn't he?
He must have finished his homework by the end of last month,hadn't he?

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haven't there
老师讲的