In subject questions the word order is the same as an affirmative sentence. In simple tenses there is no auxiliary verb.
In this question who refers to the father, the subject of the sentence.
Compare these examples.
| Question (the subjects are in blue) |
Answer |
| Who loves
Janet? Who does David love? |
David loves Janet. David loves Janet. |
| Who called before?
Who did you call? |
Wallace called before. I called Sandra. |
| Who was talking
to you? Who were you playing with? |
Mary was talking to me. I was playing with Robert. |