I think that's unlikely to happen, but if that occur, both America's and China's interest would be severely damaged.
A. should
B. could
C. would
D. might
网友回答
(答案→)A. should
B. could
C. would
D. might
解析:考查情态动词,could表示一种能力;should表示应该;would表示将要做什么;might表示可能,句子意思“我认为这是不可能发生的,如果要发生,中国和美国的利益将要受到严重损害”