Most of poems in Leaves of Grass was about _____.

A．meaning shift
B．loss of meaning
C．widening of meaning
D．narrowing of meaning

A．William Cullen Bryant.
B．Edgar Allan Poe.
C．Ralph Waldo Emerson.
D．Henry David Thoreau.

A．the founding of the Commonwealth of Australia
B．the discovery of the great southern "unknown land"
C．the first European settlement of the continent
D．Captain James Cook’s first voyage around Australia