By using a process called echolocation to analyze the echoes of the high-pitched sounds they produce, batscan determine not only the distance to an object, but they also can determine its shape and size and the direction in which it is moving.
A. can determine not only the distance to an object, but they also can determine --unparallel correlative conjunctions
B. not only can determine the distance to an object but also --- not only verb… but also noun --wrong
C. can determine not only
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A. can determine not only the distance to an object, but they also can determine --unparallel correlative conjunctions
B. not only can determine the distance to an object but also --- not only verb… but also noun --wrong
C. can determine not only
...
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