YOU SAID:
For breakfast I had an apple and orange.
INTO JAPANESE
朝食にはリンゴとオレンジを食べました。
BACK INTO ENGLISH
I had apples and oranges for breakfast.
INTO JAPANESE
私は朝食にリンゴとオレンジを食べました。
BACK INTO ENGLISH
I ate apples and oranges for breakfast.
INTO JAPANESE
朝食にはりんごとオレンジを食べました。
BACK INTO ENGLISH
I ate apples and oranges for breakfast.
That didn't even make that much sense in English.