YOU SAID:
Who are you and what have you done with my dog
INTO JAPANESE
あなたは誰で、私の犬に何をしたのですか
BACK INTO ENGLISH
who are you and what did you do to my dog
INTO JAPANESE
あなたは誰ですか、私の犬に何をしましたか
BACK INTO ENGLISH
who are you and what did you do to my dog
You've done this before, haven't you.