1. He wants to make a good first _______________.
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A.impression
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B. impressions
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C. impress
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D. impressing
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2. I really wanted to tell him to please be quiet and leave me ________!
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A.for
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B. out
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C. behind
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D. alone
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3. I found most of my classmates friendly and _____________.
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A.help
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B. helped
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C. helpful
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D. helpfully
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4. I couldn’t concentrate ________ the experiment.
