In 1778, Banks was selected _____ president of ____ Royal Society, _____ position he held for 42 years.
A．/; /; a B．/; the; a C．the; /; a D．the; the; the
In 1778, Banks was selected _____ president of ____ Royal Society, _____ position he held for 42 years.
A．/; /; a B．/; the; a C．the; /; a D．the; the; the