A．He has always lived in Edinburgh.
B．He wears a kilt.
C．He is head of the McDonald clan.
D．He is proud of his homeland--Scotland.

A．an inventor as well as a scientist.
B．a scientist rather than an inventor.
C．not a scientist but an inventor.
D．neither a scientist nor an inventor.

A．his knowledge of science and his own experiences in adventure.
B．his imagination and his love for science.
C．his own experiences in adventure and his imagination.
D．his knowledge of science and his imagination.