问题
选择题
The scientists have made _______ possible for us to communicate with each other more easily.
A．it
B．that
C．this
D．them
答案
答案：A
题目分析：考查代词的用法。make it+形容词 for sb to do sth使做某事对某人来说变得......。It是形式宾语，真正的宾语是动词不定式。故选A。