The first two services are free，______the third costs￡35. A．while B．whether C．what D．which
2022-12-29 23:19:02 114次 2012-2013河南省高一第一次考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The first two services are free，______the third costs￡35.
|
A．while
|
B．whether
|
C．what
|
D．which
|
本题链接：
