Whilecrossingthemountainarea,allthemencarriedgunslestthey______bywildanimals.
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In1900,theenergyderivedfromburningpetroleumwasonlyfourpercent______ofcoal.
Americanseat______vegetablesperpersontodayastheydidin1910.
In order to buy a new car, you should at least ______ one hundred dollars a week.
Thehostsapologizedfor______thatsomeoftheirguestsmightbevegetarians.
Inordertobuyanewcar,youshouldatleast______onehundreddollarsaweek.