YOU SAID:
Do you know where the pizza went?
INTO JAPANESE
ピザがどこに行ったか知っていますか?
BACK INTO ENGLISH
Do you know where Pizza went?
INTO JAPANESE
あなたはピザがどこに行ったか知っていますか?
BACK INTO ENGLISH
Do you know where Pizza went?
That didn't even make that much sense in English.