The young man ________ his back, ________ in thought.

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The car ran fast. You must ________ the engine to catch up with it.

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Can you have your ________ on the subject?

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How did he manage to escape ________ enemy?

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________ times went on, the boy missed his mother and was eager to go home.

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She made a candle to ________ us light.

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The baby is sleeping ________ its mother's arms.

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They ________ the enemy, but none of them were hit.

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Li Ming's handwriting is better than ________ in his class.

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She was born in Beijng but studied in Shanghai. ________.

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