A. By whom was this done?
B. By who was this done?
C. By whom is this done?
D. By whom this done?
A. By whom was this done?
Active Voice: Who did this?
- Subject: Who + Verb: did + Object: this
Passive Voice: By whom was this done?
- Subject: this (Object in active voice becomes the subject)
- Helping Verb: was (Form of “to be” according to tense)
- Past Participle: done (Main verb in active voice is changed to past participle)
- Prepositional Phrase: By whom (Who becomes the object of the preposition “by”)
Physics
Physics?