问题
选择题
It is not uncommon for there problems of communication between the old and the young.
A．being
B．would be
C．be
D．to be
答案
答案：D
考查句型：It is +adj for sb to do sth，it是形式主语，不定式是真正的主语，逻辑主语是there，动词用be，句意：在老人和年轻人之间有交流问题，很正常。选D。