As we all know, apples are sold by ____ weight, and socks are sold by _______dozen.

As we all know, apples are sold by ____ weight, and socks are sold by _______dozen.

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

As we all know, apples are sold by ________ weight, and socks are sold by ________ dozen．

1. A.
   the; a
2. B.
   /; a
3. C.
   /; the
4. D.
   the; the

 As we all know, apples are sold by ______ weight, and socks are sold by _______ dozen.
    A. the; a                    B. /; a                C. /; the                     D. the; the

As we all know, apples are sold by ______ weight, and socks are sold by _______ dozen.
A. the; a       B. /; a      C. /; the      D. the; the