今回英語は疑問文です。
In questions we usually put the subject after the first verb:
subject + verb verb + subject
Tsuyoshi will → will Tsuyoshi?
you have → have you?
the house was → was the house?
In present simple questions, we use do/does
you live → do you live?
the film starts → does the film start?
But do not use do/does/did if who/what etc. is the subject of the sentence
who object who subject
Tsuyoshi phoned somebody somebody phoned Tsuyoshi
Who did Tsuyoshi phone? Who phoned Tsuyoshi?
whoがobjectの場合はdo/does/did を使用する。whoがsubjectの場合はdo/does/did を使用しない。
練習です。
Somebody hit me. Who hit you?
I hit somebody. Who did you hit?
Somebody lives in that house. Who lives in that house?
I fell over something. What did you fall over?
というふうになります。