例句：

　　1、They believe that the computer will finally take the place of human beings.

　　他們相信計算機終將代替人類。

　　2、I wonder whether I should say something for him to the headmaster.

　　我不知道是不是該為他在校長跟前說點什么。

　　3、He asked me where he could get such medicine.

　　他問我在哪兒能搞到那樣的藥。