Teacher could not ............. beating the student for his misbehaviour.

Akeep down

Bkeep from

Ckeep back

Dkeep away

Answer:

"Keep from" means to prevent oneself from doing something.
In this context, it means the teacher could not stop herself from beating the student.

keep down

To suppress or control (e.g., emotions, prices)

Doesn't fit well with actions like beating someone

keep back

To withhold or restrain someone/something physically or emotionally

Possible, but not idiomatic in this context

keep away

To maintain distance

Irrelevant — the sentence is about self-control, not physical distance

Challenger App