问题
选择题
Without the mobile phone and Internet，communicating with each other ________ quite difficult today.[ ]
A．is
B．will be
C．would have been
D．would be
答案
答案：D
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Without the mobile phone and Internet，communicating with each other ________ quite difficult today.[ ]
A．is
B．will be
C．would have been
D．would be
答案：D