The English composition is the best way to communicate between the instructor and classmates as an online student.
Explanation:
The major issue about online classes is that the instructor can be from any nationality and community (different mother tongue).
As we know that English is a global language so the instructor and student will have easy communication between them as both will be comfortable in that.
For doubt on any any subject, student can simply develop one sentence in English and get its answer on same language, this way language barrier will not be any more a subject of problem.
