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Passage Four Ever since humans have live on the earth, they have made use of various forms of c...

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A. for ever    ever since    ever before    long before  
for twelve years ago    since she was four    twelve years ago    at the age of four  
since  ever since  ever before  till then  
A. for ever    ever since    since then    long before  
since then    ever since    after    before  
ever since  even though  the moment  as if  
since  ever since  ever before  till then  
since for    since since    for for   for since  
dozens of people have rung him but haven't given him a job  he has applied for jobs but nobody ever replies to his letters  he has not seen any other jobs advertised  only four times have employers asked him to come and see them  
took on, before  has taken on, since  takes on, since  has been taken on, after  
have gone,since then  goes,from then   has gone,since then  went,ever since  
for twelve years ago    since she was four   twelve years ago    at the age of four  
only if  much as  long before  ever since  
will never  that  has changed  ever since  
come,20 years ago  left,Since four years  worked,For about four years  gone,In 1995  

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