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Verbal·Standard English Conventions·Form, Structure, and Sense
easy
In 1811, twelve-year-old Mary Anning discovered the fossilized skull of an Ichthyosaurus along the cliffs of Lyme Regis in Dorset, England. Over the next three decades, she        numerous significant marine reptile specimens that transformed the emerging scientific field of paleontology, despite receiving little formal recognition from contemporary academic societies during her lifetime.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
will unearth
B
unearthed
C
is unearthing
D
unearths