We have been talking about this topic _____ A.for a long time B.already C.yesterdayD:for hours选什么?为什么?还有Tom ____ watching China Open for hours during the seven-day vacation.A has been B was C had been D was being 选什么?理由?随

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We have been talking about this topic _____ A.for a long time B.already C.yesterdayD:for hours选什么?为什么?还有Tom ____ watching China Open for hours during the seven-day vacation.A has been B was C had been D was being 选什么?理由?随
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We have been talking about this topic _____ A.for a long time B.already C.yesterdayD:for hours选什么?为什么?还有Tom ____ watching China Open for hours during the seven-day vacation.A has been B was C had been D was being 选什么?理由?随
We have been talking about this topic _____ A.for a long time B.already C.yesterday
D:for hours选什么?为什么?还有
Tom ____ watching China Open for hours during the seven-day vacation.
A has been B was C had been D was being
选什么?理由?
随便说说have been doing和have done的区别

We have been talking about this topic _____ A.for a long time B.already C.yesterdayD:for hours选什么?为什么?还有Tom ____ watching China Open for hours during the seven-day vacation.A has been B was C had been D was being 选什么?理由?随
1.D 现在完成进行时和时间段for hours搭配；for a long time很长时间,不如前者的for hours准确；already已经,不能和现在完成进行时连用；yesterday是一般过去时的时间状语
2.C had been watching是过去完成进行时,和句尾的时间状语相呼应.has been doing是现在完成进行时,大7天假日已经过去,故时态错误；was doing是过去进行时,表明在过去是一段时间里一直进行的动作,但他不可能在7天除此什么都不做了,另外和for hours也不匹配；was being doing,没有这种时态.
have been doing和have done的区别：前者强调进行性.两者经常可以换用.

We have been talking about this topic _ for a long time____ .
选 A 吧。
我们已经讨论这个话题很久了。.
好像记得说 have been doing 是过去在做，一直延续到现在，未来可能要继续做下去。
所以不是已经完成 B. already
这是一个现在的时态，所以不是 C. yesterd...

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We have been talking about this topic _ for a long time____ .
选 A 吧。
我们已经讨论这个话题很久了。.
好像记得说 have been doing 是过去在做，一直延续到现在，未来可能要继续做下去。
所以不是已经完成 B. already
这是一个现在的时态，所以不是 C. yesterday （过去）D:for hours （一般现在/过去）
※网上有人说 a long time 没有 for hours 具体，我还是想选 a long time。哎！我就是觉得 for hours 有一般现在时的感觉，见例句如下：
Sitting for hours can shave years off life. 久坐减寿。
Tom ____ watching China Open for hours during the seven-day vacation.
A has been B was C had been D was being
选 C 吧，during the seven-day vacation 在七天假日里，是过去时态，排除 A。
根据 for hours 选择完成时态 C。
哈哈~~

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1.have been doing 代表有限一段时间内一直在完成的动作，have done 仅仅代表已经完成的那个瞬间，所以
我觉得应该选A吧。
2.同样的理由， 因为是for hours，一段时间内完成的动作，应该是have been，during the seven-day vacation.告诉我们是在七天的假期内做的，也就是说是过去发生的事，所以应该用had been

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1.have been doing 代表有限一段时间内一直在完成的动作，have done 仅仅代表已经完成的那个瞬间，所以
我觉得应该选A吧。
2.同样的理由， 因为是for hours，一段时间内完成的动作，应该是have been，during the seven-day vacation.告诉我们是在七天的假期内做的，也就是说是过去发生的事，所以应该用had been
第二题选C

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have been talking, had been told? We have been ```` 9.We have been talking about the school and the students ____ we visited last week.A) who B) whomC) that D) where We would have been very We have been moving fomward! 英语翻译We want to expand this market and have been talking to end users in Spain,Netherlands,and Germany to potentially supply them. We always have a great time__to each other.A talking ... We always have f____ sitting under the tree and talking. nice talking to you but we have to 英语翻译Have we been best friends yet? we have been flighting all your Fuijhbbbhh and then we have been I/we should have been working.是什么意思 We have been always in love. We have been used to it sadly we would have been very good we have been expecting you 翻译 have,been,to,zoo,many,the,we.