反义疑问句You must have been there before,______?A.have you B.did you C.haven't you D.didn't you请说明理由,还有一道You must have been in Beijing last month,_______ A.aren't you B.did you C.weren't you D.didn't you

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反义疑问句You must have been there before,______?A.have you B.did you C.haven't you D.didn't you请说明理由,还有一道You must have been in Beijing last month,_______ A.aren't you B.did you C.weren't you D.didn't you
反义疑问句
You must have been there before,______?
A.have you B.did you C.haven't you D.didn't you
请说明理由,
还有一道
You must have been in Beijing last month,_______
A.aren't you B.did you C.weren't you D.didn't you

反义疑问句You must have been there before,______?A.have you B.did you C.haven't you D.didn't you请说明理由,还有一道You must have been in Beijing last month,_______ A.aren't you B.did you C.weren't you D.didn't you
第一题应该选C,该句含must,后面有完成时跟完成时定,前肯后否.
第二题选C是因为前面句子中有具体时间last month,故跟be定,如果不是have been,而是其他现在完成时,如have
eaten,则后面用did 形式

这两个题目 都是 看意思 第二个 是 你在不在 不就是 you are in beijing 吗 但是 是 上个月 所以过去式 这样说明白吗

第一题 选 C. haven't you 因为must在此题中表示推测，所以反意问句不用情态动词，而根据它后面的时态选出相应的形式，如后面有have done但没有过去时间状语，就选haven't you ,所以这题 这样选
第二题选 D. didn't you 同上如果有过去时间状语就用此形式表示过去。可答案给的是C，C为什么不对?...

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第一题 选 C. haven't you 因为must在此题中表示推测，所以反意问句不用情态动词，而根据它后面的时态选出相应的形式，如后面有have done但没有过去时间状语，就选haven't you ,所以这题 这样选
第二题选 D. didn't you 同上如果有过去时间状语就用此形式表示过去。

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孩子： C. haven't you 因为must在此题中表示推测，所以反意问句不用情态动词，而根据它后面的时态选出相应的形式，如后面有have done但没有过去时间状语，就选haven't you ,所以这题 这样选 。Do you know
、
？

C must 表示肯定语气 before 出现 现在完成时 谓语还是 have + 过去分词 所以用 haven't
C 对过去的肯定猜测 last month 一般过去时就好 所以 weren't

1.选c.理由是，将情态动词must去掉后为一现在完成时，反义问句自然用havn't....
2.must have been是was的推测形式(不推测时应该用was)，反义问句自然用weren't you.

C。理由就是前面是肯定，那么后面要是否定，只能是C或D；前面是完成时，所以后面要使用haven't，所以是C

must + have done 是对过去事实的推测，构成反义疑问句时，需要按照实际句子来选择助动词、Be动词，题干中有last month,说明是一般过去时。句中的动词为Be。所以选择C

英语反义疑问句you must have read the book,____? you must have seen her yesterday 改为反义疑问句 must have done 的反义疑问句怎么说 must的反义疑问句 You have long hair,反义疑问句是什么 It must have rained last night,______?变反义疑问句 He must have been here yesterday,( 改为反义疑问句为什么 反义疑问句填空They must have come back,______? 反义疑问句You must have been there before,______?A.have you B.did you C.haven't you D.didn't you请说明理由,还有一道You must have been in Beijing last month,_______ A.aren't you B.did you C.weren't you D.didn't you 反义疑问句you must finish it now,____________you? you must do it的反义疑问句是什么? 反义疑问句的一道题– You must do as I tell you.- Oh,I must,__________?A.should I B.ought I C.mustn’t I D.must I为什么?顺便帮我讲一下反义疑问句的知识. linda is very sad1.Linda is very sad___what you've said to herA.because of B.thanks to C.because D.since 2.有classic这个词吗?反义疑问句3.he must have been to beijing _______? You must have met uncle Wang in the shop yesterday,didn't you?这个反义疑问句的后半部分为什么用过去式而不是完成时 she must be student的 反义疑问句如果是you must do it 那 反义疑问句后面接的是must you前面能用must not吗 I have more time than you ,______?的反义疑问句 He would you like to have some tea.反义疑问句