问题
选择题
It was for the first time that the two countries ______ an agreement.
A．reached
B．have reached
C．had reached
D．will reach
答案
答案：A
题目分析：考查时态：句意：这是两个国家第一次达成协议。这是强调句，还原后是：The two countries ______ an agreement for the first time. 时间是for the first time，用一般过去式，选A。