____ most efficient way to understand thousands of new words is to gain ____ good knowledge of basic word information.

____ most efficient way to understand thousands of new words is to gain ____ good knowledge of basic word information.

____ most efficient way to understand thousands of new words is to gain ____ good knowledge of basic word information.

A．A; a.                                 B．The; /

C．A ; /                                 D．The; the

____ most efficient way to understand thousands of new words is to gain ____ good knowledge of basic word information.

A．A; a.             B．The; /            C．A; /              D．The; the

_________ being efficient and reliable, the newly arranged system even made no sense about the development of Chinese Football Association.