Throw a pencil:
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Seal, closes, pad opens
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Pressing a button on a ballpoint pen
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Hole puncher
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Click on the calculator buttons
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Pressing a button on a ballpoint pen (on a
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Chalk writing on the blackboard
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Tear off tape
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Crunching paper rustling
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Electric pencil sharpener
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Rubber stamp
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Scissors cutting paper
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Tape holder, tape over carton
★★★★★