The high school students studied in the library.

高中生正在图书馆读书。

youdao

The high school students are studying in the library.

高中生在图书馆读书。

youdao

The high school students study in the library.

高中生正在图书馆学习。

youdao

The high school students study in the library.

高中生正在图书馆学习。

youdao