问题
选择题
I think that's unlikely to happen, but if that_______, both America's and China's interest would be severely damaged.
A．should occur
B．occurs
C．had occurred
D．is going to occur
答案
答案：A
题目分析：考查虚拟语气：句意：我想这不可能发生，如果发生了，中国和美国的利益会被严重的损坏。第一句话就说这不可能发生，所以如果发生，是对将来的虚拟条件句，从句用should do或were to do，也可以用过去时，选A。