Now there is a danger ________ the ground may fall in under the heavy traffic. A．whether B．if C．X D．...
2023-01-31 23:22:36 14次 2010届三轮语法回扣专项训练（名词性从句） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Now there is a danger ________ the ground
may fall in under the heavy traffic.
|
A．whether
|
B．if
|
C．X
|
D．that
|
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