YOU SAID:

I threw a rock at a pizza box.

INTO JAPANESE

ピザの箱で石を投げた。

BACK INTO ENGLISH

Threw a rock in a pizza box.

INTO JAPANESE

彼はその池に石を投げた。

BACK INTO ENGLISH

He cast a stone into the pond.

INTO JAPANESE

彼はその池に石を投げた。

BACK INTO ENGLISH

He cast a stone into the pond.