A computer works ___ electrical signals
- in
- on
- by
- over
Explanation
A computer works by electrical signals.
"By" is used to indicate the means or method by which the action is performed
Related MCQs
- In
- On
- Of
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- Preposition phrase
- Noun phrase
- Adjective phrase
- None of these