On our arrival, we found Tom _____at the desk and ______a letter.
| A．seated, wrote | B．sitting, written | C．seating, writing | D．seated, writing |
The house they are living now is____________our house.
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26. The naughty boy _______ to me that the hen that ______ there just now had_____ two eggs the day before.
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_____________he referred to in his article was unknown to the readers.
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______________breaks the law should be punished.
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The government has to close those small factories to prevent the water of the river ______.
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