It __long before we celebrate the NEW YEAR'S Day.A isn't B hasn't been C wasn't D won't be请问选哪个谢谢.

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It__longbeforewecelebratetheNEWYEAR''SDay.Aisn''tBhasn''tbeenCwasn''tDwon''tbe请问选哪个谢谢.It__longbeforewecel

It __long before we celebrate the NEW YEAR'S Day.A isn't B hasn't been C wasn't D won't be请问选哪个谢谢.
It __long before we celebrate the NEW YEAR'S Day.
A isn't B hasn't been C wasn't D won't be
请问选哪个谢谢.

It __long before we celebrate the NEW YEAR'S Day.A isn't B hasn't been C wasn't D won't be请问选哪个谢谢.
D 用将来时,意为我们不久后就能庆祝新年了

选D
这是一个固定句型。
It + be (not) + long before
表示"(不)很久 / 才…"或"(没)过多久就 / …"
It was (not) long before …. (谈论过去)
It will (not) be long before ….(谈论将来)
It was not long before she came ...

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选D
这是一个固定句型。
It + be (not) + long before
表示"(不)很久 / 才…"或"(没)过多久就 / …"
It was (not) long before …. (谈论过去)
It will (not) be long before ….(谈论将来)
It was not long before she came back.
没过多久她就回来了。
It will be long before we meet again.
很久以后我们才会再见面。
It will not be long before we turn our hope into reality.
过不了多久我们的希望就会变成现实。
这里it指时间,before是连词,引导时间状语从句.long可用一段时间来替代.
It will be five years before he meets you again.
五年之后他就会再见你的。
注意：在这个句型中时态并不是固定不变的（从例句中就可以看出来）；但也不是没有规律可循。一般而言，It后面用was＋一段时间时，before后面常用一般过去时；而It后面如果是will（not）be＋一段时间，before后面就要用一般现在时。
其实这些形式不必死记，通过例句理解其含义，就会变得很容易。

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it __long before we ___ the result of the experimentwill noy be;will knowis;will knowwill not be;knowis;know It __long before we celebrate the NEW YEAR'S Day.A isn't B hasn't been C wasn't D won't be请问选哪个谢谢. Before we knew it 怎么翻译? We must take ____(act) before it is too late We implored him to act before it was too late. What do we call it before a chicken ---(be) born? We must get there before it ___(begin)to rain. It will be three years before we meet again. We must C----------- your food well before you swallow it it well be three years before we can meet again It won't be long before we hit the road. It will be two years before we meet again 翻译改错 We find it impossible get there before 8：00 we'll make it before the clock strikes nine Two years has _____ _____(流逝) before we knew it. Life is half spent before we know what it is. it will not be long before we can meet again.为什么不用before long Before we knew it, we had to say goodbye to the famers.这里的before怎么解释