______, corn, tobacco, wheat, and furs moved downstream to the delta country ...
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From them all Mark Twain gained a keen perception of the human race, of the difference between what people ______ to be and what they really are.
A. proclaim
B. claim
When railroads began drying up the ______ for steamboat pilots and the Civil War halted commerce ...
A. demand
B. need
Attacks on the city government, concerning such issues as ______ of Chinese, so angered officials that he fled to the goldfields ...
A. ill-treatment
B. mistreatment
"It was that population that gave to California a name for getting up astounding enterprises ... and a recklessness of cost or ______ ..."
A. results
B. consequences