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　　2．Come to see me if you will be free next Sunday.

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　　3．As he is clever，he can't solve the problem.

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　　4．He is sure to come unless he has no urgent business.

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　　5．I don't know if he comes tomorrow.

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　　6．Harold shared the first place with the identical score 18.75.

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　　7．I will not buy it as if I have a lot of money.

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　　8．I haven't heard from Mr. Smith after he went to Canada three years ago.

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