单项选择题
A．Voice. B．Intelligence. C．Appearance. D．Manners.
A.additional B.affect C.aptly D.assimilate E.circulation F.closely G.consistent H.enthusiasm I.identify J.impact K.penalty L.reward M.simplifying N.suspending O.vulnerable
A．They have fallen prey to wolves. B．They have become a tourist attraction. C．They have caused lots of damage to crops. D．They have become a headache to the community.