What's the matter _____ they still haven't answered the telegram? A．when B．that C．though D．however
2023-02-01 02:38:36 208次 2010届三轮回扣语法专项训练（状语从句） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
What's the matter _____ they still haven't
answered the telegram?
|
A．when
|
B．that
|
C．though
|
D．however
|
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