Which subjects are compulsory in your school?

在你们校里， 哪些程是必的？

Is English an optional lesson, or does everyone have to learn it?

英语是还是每个人必的程？

This is a prescribed course which spreads over two semesters.

这是门两个期完的必。

Three subjects must be taken, viz., English, mathematice and history.

三个科目是必的, 即英文, 数史。