YOU SAID:

when my teachers said that time would fly doing this lesson, i didn't think we were throwing clocks

INTO JAPANESE

先生がこのレッスンをやると時間が飛ぶと言ったとき、私たちは時計を投げているとは思いませんでした

BACK INTO ENGLISH

I didn't think we were throwing a clock when the teacher said that time would fly when doing this lesson

INTO JAPANESE

先生がこのレッスンをすると時間が飛ぶと言ったとき、私たちは時計を投げているとは思いませんでした

BACK INTO ENGLISH

I didn't think we were throwing a clock when the teacher said that time would fly when doing this lesson