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Scientists previously thought that all electric eels belong to a single species, but a team of researchers led by zoologists. C. David de Santana proved this idea wrong by ________ that there are in fact three distinct species of electric eels.
Which choice completes the text with the most logical and precise word or phrase?
Reading and WritingCraft and Structure
US traffic signals didn't always contain the familiar three lights (red, yellow, and green). Traffic lights only ______ red and green lights until the three-light traffic signal was developed in the 1920s.
Which choice completes the text with the most logical and precise word or phrase?
Reading and WritingCraft and Structure
As an architect in Los Angeles in the 1950s, Helen Liu Fong became known for avoiding ________ designs in her buildings. Instead of using standard shapes and colors, she typically explored innovative forms and daring hues.
Which choice completes the text with the most logical and precise word or phrase?
Reading and WritingCraft and Structure