—What do you think of teaching, Bob?—I find it fun and challenging. It is a job ______ you are doing something serious but interesting.
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where
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Too much fishing may harm fish population to the point________they can’t recover.
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what
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which
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there
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where
You have won the first prize in the game, ______ you didn’t mention in your speech yesterday.
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as
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since
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what
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which
That’s the new machine ________ parts are too small to be seen.（ ）
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that
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which
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Look out! Don’t get too close to the house____ roof is under repair.
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whose
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which
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of which
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that