This 363-mile-long waterway, the longest canal in the US at the time, made it much easier to transport passengers and goods between New York and the Great Lakes. For this reason,
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Verbal·Standard English Conventions·Boundaries
hardWhich choice completes the text so that it conforms to the conventions of Standard English?
A
it is often called “the nation’s first superhighway.”
B
it is often called “the nation’s first superhighway”?
C
is it often called “the nation’s first superhighway”?
D
is it often called “the nation’s first superhighway.”