The Chinese government has made fruitful efforts to ________ (upgrade) and enhances the economic status of women.
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The boss gave him the push _________ (due to) his careless work.
The __________ (combine) of the 50 states forms the United States of America.
The servants showed somewhat _________ (constrain) in the master's presence.
Can we ever ________ (elimination) poverty from the world?