The bird covered the distance in three minutes.时态为?助动词 对covered the distance 划线提问up to now的同义词组是?He has begun his own private'telephone' service.时态为?助动词 否定句 一般疑问句 肯否回答 对his own p

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The bird covered the distance in three minutes.时态为?助动词 对covered the distance 划线提问up to now的同义词组是?He has begun his own private'telephone' service.时态为?助动词 否定句 一般疑问句 肯否回答 对his own p
The bird covered the distance in three minutes.时态为?助动词 对covered the distance 划线提问
up to now的同义词组是?He has begun his own private'telephone' service.时态为?助动词 否定句 一般疑问句 肯否回答 对his own private'telephone' service划线提问
He has begun his own private'telephone' service.时态为？He has begun his own private'telephone' service的助动词He has begun his own private'telephone' service的 否定句He has begun his own private'telephone' service的 一般疑问句 He has begun his own private'telephone' service的肯否回答 对his own private'telephone' service划线提问

The bird covered the distance in three minutes.时态为?助动词 对covered the distance 划线提问up to now的同义词组是?He has begun his own private'telephone' service.时态为?助动词 否定句 一般疑问句 肯否回答 对his own p
up to now 的同义词组为：so far ,till now ,untill now(这三个词组都是现在完成时的标志词,即他们出现时,句子常用现在完成时)
He has begun his own private'telephone' service.时态为现在完成时 ,助动词为has,否定句在Has 后加not,即 He hasn't begun his own private'telephone' service.一般疑问句：Has he begun his own private'telephone' service?肯定回答：Yes,he has.
另外,看您提的以上问题都是关于现在完成时的具体问题,以下建议您可能用得着：
1 现在完成时的句子结构为：have/has + 动词的过去分词,其中have/has为助动词.
2 一般的陈述句变一般疑问句时,常把助动词提到句首,再加上其他内容,句尾的句号变问号.肯定回答是：Yes,主语（常为人称代词,如you ,i ,he,she等）+助动词
还有什么问题,望追问.
3

一般过去式
what did the bird do in three minutes?
up to now: till now , so far等等
现在完成时态
助动词has
否定句在has后加not
一般疑问句将has和he颠倒
肯定回答：yes，he has
what has he begun？

时态为一般过去时。What did the bird do in three minutes? 时态为现在完成时。助动词是has.
He hasn't bugun his own private telephone service. Has he begun his own private telephone service? Yes,he has.What has he begun?

the bird covered the distance in three minutes 这里的 cover怎么回事呢cover不是覆盖 的意思吗 the bird and the The ground is covered with table covered with the wipers She a_____ the bird. The bird is what can the bird 新二Lesson 5 中有一句 The bird covered the distance in three minutes.为何用in+一段时间,不是用在将 the bird还是 the birds It covered the whole the distance 鸟笼是the bird's cage还是the bird cage the singing bird与the bird to sing 的区别 something about the bird 翻译 lion in the bird cage Little bird --The weepies 中文翻译 a lion in the bird the( )bird填写颜色英语单词 why does the bird fly