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standards
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active
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Think twice about keeping a pet./Think twice before you keep a pet.
Don't worry too much, or you'll get much too tired. If you worry too much, you'll get much
too tired.
Simon is good at not only playing football but also playing chess.
Either David or Bill is going to be chosen as the chairperson of the Students' Union.
Who do you think is suitable for being your partner?
C
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