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A. Explain the meaning of the following:

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- obsessed with

​- uppermost

​- frivolous

​- standing

​- preoccupy

​- upright

​- vain

​- known fact

​- one's mind/thoughts wander

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B. Please make a sentence using the following:

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​- obsessed with (ex: She's an animal advocate, a former vet tech and describes herself as obsessed with animals.)

​- uppermost (ex: The building's uppermost floors were engulfed with flames.)

​- frivolous (ex: I'm not going to spend my money on something so frivolous.)

​- standing (ex: A financial scandal would shake the Institute's standing in the international academic community.)

​- preoccupy (ex: Economic concerns are preoccupying the voters in this election.)

- upright (ex: She behaved as any upright citizen would have under the circumstances.)

​- vain (ex: He was very vain about his hair and his clothes.)

​- known fact (ex: It is a known fact that John was in Chicago on the night of the murder.)

​- one's mind/thoughts wander (ex: Halfway through the meeting my mind/thoughts started to wander.)