Attempts to break up this old system _______(make ) in every presidential election in the past one hundred years.
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Nations are classified as “aged ” when they have 7% or more of their people aged 65
Two of _________(big) earthquakes that were ever recorded tood place in China and Alaska.
Every decision has constraints _______(base ) on policies, procedures ,laws, precedents ,and the like.
These mine planets ,together with the sun ,make up what _______(call) our solar system.