One of the responsibilities of the Coast Guard is to make sure that all ships______followtraffic rules in busy harbors.
B
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OneoftheresponsibilitiesoftheCoastGuardistomakesurethatallships______followtrafficrulesinbusyharbors.
Inordertobuyanewcar,youshouldatleast______onehundreddollarsaweek.
In1900,theenergyderivedfromburningpetroleumwasonlyfourpercent______ofcoal.
Iwasshockedbythenumberofpeoplewhoseemedtohavenothingbettertodowiththeirtimethan______toknowfishbetter.
Thesuspectcooperatedfullywiththepolicewhen______abouthisroleintheincident.