问题
选择题
The Diaoyu Islands _____ in Chinese maps since the 14th and 15th centuries.
A．have been included
B．had been included
C．were included
D．are included
答案
答案：A
题目分析：考查时态语态：句意：钓鱼岛自从14和15世纪一直被包括在中国的版图内。时间状语是since the 14th and 15th centuries.应该用现在完成时，表示动作从过去一直到现在，而且是被动语态，选A。
