题目内容
Governments establish _________ systems to provide a safety net to prevent people from suffering the effects of poverty.
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You quit that respectable, well-paid job for this unpromising one? What _________ you?
Many animals face extinction as the result of human _________.
Her hope of her husband’s return is _________ as year go by.
Having worked for three years, Roger decided to enroll on an MBA program and _________ his choice to three famous universities on the east coast.
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