The old man heard _____ the sound of foot steps on fallen leaves, but could see nothing when he came out.

单选题

The old man heard _____ the sound of foot steps on fallen leaves, but could see nothing when he came out.

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单选题

With his daughter ___________, the old man felt unhappy.

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单选题

While being questioned on the court, the man denied ____ the old lady’s necklace.

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单选题

His _____ by the kind old man changed the boy’s whole life.

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单选题

The old man has developed a( )headache which cannot be cured in a short time.

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