many [years ago], [much of] what was possible to know was derived [from] inspiration
or divination and did not involve the rational process of reasoning in [wide use]
Rand, ______ novels deal with the nature of capitalism in a democracy, is often
taught in introductory courses in economics.
many whose whose many of whose of many many
formation of a rainbow [occurs] a process in which light is diffused at [varying]
rates by the surrounding atmosphere, [resulting in] the reflection of different
[wavelengths] of light.
difficult, it [possible] for an adult learner of a new language [to master] the
subtleties of the grammar and syntax of [the new] language.
a bird molts, ______ loses its feathers, it is actually preparing itself for the
regeneration of the lost feathers.
so its as
if as when it so
scientific method is a system [which] a problem or challenge [is] identified and
possible solutions are created and tested, [with] the final results evaluated
to determine the best approach to the [resulting] theory.
Smithsonian Institution in Washington D.C. is [home to] the largest [collecting]
of Native American artifacts in the United States, most [of which] remain [uncatalogued]
and hidden from public view.
modern critics of American literature have called Mark Twain, born Samuel Clemens,
America's greatest writer was
America's greatest writer America's greatest writer to
have been America's greatest writer
the modern [era], face-to-face communication is becoming [near] [as uncommon as]