YOU SAID:
What happened to the duck we had last night?
INTO JAPANESE
昨晩持っていたアヒルはどうだった?
BACK INTO ENGLISH
How was the duck you had last night?
INTO JAPANESE
あなたは昨夜、アヒルはどうでしたか?
BACK INTO ENGLISH
How was your duck last night?
INTO JAPANESE
昨夜、あなたのカモはどうでしたか?
BACK INTO ENGLISH
How was your duck last night?
That didn't even make that much sense in English.