The wealthy are always wealthy and the poor are always poor. It is extremely difficult for the poor _____wealthy, _____ they struggle to their full abilities.
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A. becoming; even if B. to become; even so D. becoming; if so D. to become; even though
Foreign visitors will be amazed ______ the art work of three cowboys on horseback ______ a crowd of cows back home along a road on the Rocky Mountains on one broad maple leaf.
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A. seeing; driving B. to see; to drive C. to see; driving D. seeing; to drive