After three years of hard work, they had at last paid ________ all the money they had borrowed.

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 After three years of hard work, they at last _____ all the money they had borrowed.

   A. paid off         B. paid back          C. paid in           D. paid for

After three years of hard work, they at last _____ all the money they had borrowed.

1. A.
   paid off
2. B.
   paid back
3. C.
   paid in
4. D.
   paid for

 After three years of hard work, they at last _____ all the money they had borrowed.

   A. paid off         B. paid back          C. paid in           D. paid for

After three years of hard work, they at last _____ all the money they had borrowed.