单项选择题
A.older: The oldest B.older: The eldest C.elder: The oldest D.elder: The old one
A.in duplicate;in quadruplicate;in triplicate B.in quadruplicate;in triplicate;in duplicate C.in triplicate;in duplicate;in quadruplicate D.in duplicate;in triplicate;in quadruplicate
A.be depend B.depending C.depended D.depend