Cherries are sold by ________ weight, and books can be mailed by ________ dozen.
A./; a
B.the; the
C.the; a
D./; the
对258人提供帮助
by weight按重量;by the dozen按打……
Cherries are sold by ________ weight, and books can be mailed by ________ dozen.
A./; a
B.the; the
C.the; a
D./; the
对258人提供帮助
by weight按重量;by the dozen按打……