People can re-enter the building as long as they want.
错误
举一反三
内容
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People can take sauna for a long time to relax themselves.
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— You can’t enter the building without __________ permission.— I’ve lost __________ permission card. A: the; a B: a; the C: \; the D: \; \
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A lack of sleep in the long term can reduce people’s concentration.
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Young people are not _______ to stand and look at works of art; they want art they can participate in.
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People can learn online, so they don't want to go back to school.