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If I __________the same problem you had as a child, I might not have succeededin life as well as you have.

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She acted as if she _________ him before.

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Do you think there would be less conflict in the world if all people ______ thesame language?

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It was much colder than we had thought. _____ we had taken more warm clothes.

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George won't lend you and money_____ you promise to pay him back.  

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Were he ten years younger, he _____ part in the voyage around the world.

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If I had known you were asleep, I __________so much noise when I came in.

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If he________exercises, he________play soccer.