用
在“I’m sorry that．—／We were surprised that一．／They were disappointed that．．．”等引导的表示原因的状语从句中,用“should十动词原形”.例如：
I’m sorry that he should be in such poor health．他的身体这么差让我很难过.
We were surprised that she should be so stubbom．她这么固执让我们感到奇怪.
上述句子有时也可以用陈述语气,但这仅表示所叙述的是事实,而不表示讲话人的情绪.