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Although the puzzle seemed _____ at first, it was _____to complete.

  • A.fun ... interesting
  • B.complicated ... easy
  • C.confusing ... hard
  • D.difficult ... lengthy

Answer: B

It is complicated ... easy.

Although signals a contrast, so the two blanks must pull against each other. Confusing and hard, or difficult and lengthy, both point the same way and leave the although with nothing to do.

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