问题
选择题
The CDs are on sale! Buy one and you get completely free.
A．other
B．others
C．one
D．ones
答案
答案：C
句子可以还原为“buy a CD and you will get a free CD。用one 代替a +可数名词单数。
搜题请搜索小程序“爱下问搜题”
The CDs are on sale! Buy one and you get completely free.
A．other
B．others
C．one
D．ones
答案：C
句子可以还原为“buy a CD and you will get a free CD。用one 代替a +可数名词单数。