There is no doubt _________ the world climate has been changing in recent years. A．that B．what C．if ...
2022-12-25 19:21:41 155次 2012-2013学年湖南省高二第三次月考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
There is no doubt _________ the world
climate has been changing in recent years.
|
A．that
|
B．what
|
C．if
|
D．whether
|
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