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One way to understand thousands of new words is to gain _____ good knowledge of basic word formation.

　 A. / 　 B. the  C. a 　 D. one

One way to understand thousands of new words is to gain_________good knowledge of basic word formation.

A./                       B.the                     C.a                       D.one

One way to understand thousands of new words is to gain ________ good knowledge of basic word formation.

         A. /   B. the       C. a  D. one

One way to understand thousands of new words is to gain _____ good knowledge of basic word formation.

　 A. / 　 B. the

　 C. a 　 D. one

One way to understand thousands of new words is to gain _____ good knowledge of basic word formation.

A. / 　 　　 B. the　　 C. a 　 　　　D. one