His failure to pass the examination surprised us. 他的落榜是使我们吃惊的。
Sophia’s having seen them did not surprise us. 索菲亚看见了他们，并不使我们感到惊讶。
■tease
I said it just to tease her. 我说这件事只是想逗她罢了。
It was cruel of Tom to tease that little boy. 汤姆取笑那小孩，真坏。
■thank
It would have been nice if he’d thanked you. 要是他对你表示了谢意，那就好了。
I thanked him for the position which he had procured for me. 我感谢他为我找到的那个职位。
If he had received the present, he should have thanked her. 如果他收到了礼物，他是应当向她道谢的。
■trouble
I hate to trouble you. 我不愿麻烦你。
I’m sorry to trouble you. But can you direct me to the nearest post office? 对不起打扰一下，你可以告诉我最近的邮局在哪儿吗?
■warn
He warned me not to touch it. 他警告我不要触碰它。
He warned us that the roads were icy. 他警告我们道路上结了冰。
They warned him against swimming in the lake. 他们告诫他不要在这湖里游泳。