Mark Twain worked for several years as a pilot on a steamboat, taking passengers up anddown the Mississippi, the great river ___flows from the north of the US near the Canadianborder.
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The road construction is based on the agreement, one of _______ purposes is to ensure its completion on time.
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which
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whose
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that
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what
Have you ever had a case _________ someone accused of your journalist of getting the wrong end of the stick.
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which
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where
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that
D
for which
The air quality in the city, ________is shown in the report, has improved over the past two months.
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that
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it
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as
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what
With the fast development of agriculture, the people, ______ village she taught ten years ago, have lived a happy life.
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who
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in whose
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whose
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in which