[译] 只有两个学生留在教室里，其余的都去图书馆了。
[误] Only two students remain in the classroom, and the rest has gone to the library.

[正] Only two students remain in the classroom, and the rest have gone to the library.
[注] the rest 表示“其余的”，当它用作主语时，其谓语动词用单数还是用复数，要根据 the rest 所指的内容来定。句中的 the rest 等于 the rest of the students, 其中 students 是复数，所以谓语动词也用复数形式。