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Grammar › ViewReplace the underlined portion of the sentence with a choice that creates a parallel structure.
Learning a new language as an adult is more difficult than to learn one as a child.
A. learning
B. to learning
C. learned
D. no change
Vocabulary › View
particles of rock and clay that settle at the bottom of rivers and oceans
A. erosion
B. sediment
C. organic
D. nutrient depletion