Forty people came to the meeting. Two of them were from Japan， the others from America。

　　Many people came to attend the meeting. Some were from Japan， others were from America。

　　The United States， unlike many other countries， receives a large number of immigrants every year from all over the world。

　　The twin sisters are so alike that we find it difficult to tell one from the other。(so……that 如此以至于 tell sb. from 区分)

　　Some students are watering the flowers， others are weeding the fields。

　　The task will be finished in another three days。

　　Four of them are in the classroom. What about the others?

　　Please give me another example to illustrate your point。

　　There are three apples on the table. One is for my mother， another is for my father and the third is for me。