____ most efficient way to understand new' words is to gain _____good understanding of basic word formation,
A. The; a B. The; 不填 C. At;不填 D. The; the
____ most efficient way to understand new' words is to gain _____good understanding of basic word formation,
A. The; a B. The; 不填 C. At;不填 D. The; the
A