The ________ boy was last seen ________ near the East Lake.

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Victor apologized for ________ to inform me of the change in the plan.

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He is running ________ the wind towards the station ________ Tom running ________ the right.

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Mr. Black, ________ born in Kentucky, lived and practiced law in Missouri.

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Seeing we haven't done well in English, our teacher asked us the question ________ we liked the subject of English.

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－He seldom goes abroad, does he?

－________. Only once when he was young.

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The bike which John ________ red belongs to our team.

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The conference ________ a full week by the time it ends.

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－Let's see if the basketball game has started yet.

－Started? It must be clear who ________ by now.

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It is not only his energy but also his spare time that ________ this experiment.

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