It’s widely known that you won’t achieve success ____

 It’s widely known that you won’t achieve success _____ you work hard.

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unless

whether

until

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I enjoy the popular dance “hip--hop” , but ______my father _______ my mother like it .

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both; and

not only; but also

either; or

neither; nor

Many people shop on line, ________ years ago, they bought things only from stores.

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and

but

  I   didn’t   know  anything  about it ______my  father told me .

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until

because

after

and

Finally, tired          happy, we took the subway back home.

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and

but

We must do something to protect the earth, ____we will lose our home.

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and

but