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The year is 2094.It has been announced that a comet(彗星) is heading towards the Earth. Most of it w...

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went; has been  has been; went  goes; went  has been; has been  
went; has been    has been; went    goes; went    has been; has been  
that have been shown this year   that have shown   that has been shown this year   that you talked  
that have been shown this year    that have shown    that has been shown this year    that you talked  
has gone to; either    has been to; either    has been in; none    have been in; none  
is; come  is; have come  has been; came  has been; have come  
has been in  has been to  has gone to  went to  
has taught    taught    has been taught    has been teaching  
has been in, been to    have been in, been to    has gone to, gone to    has gone to, been in  
has; some    have been; more    has been; more    have; more  
that have been shown this year    that have shown    that has been shown this year    that you talked  
went... has been    has been ...went    goes... went    has been... has been  
left  has left  has been away  has been away from  
has been working  had been working  has worked  had been worked  
has been married with    married with    married to    has been married to  
has been risen    has raised    has risen    has been raised  
left    has left    has been away    has been away from  
has gone to; either    has been in; either    has been in; none    have been in; none  
left  has left  has been away  has been away from  

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