Read the sentence and choose the right preposition from the box. Write down 1 word only. Примечание: в ответе запишите только предлог с маленькой буквы. after, for, down, forward, back, at, up, to, on, into My grandfather has always taught me not to look on what I once did. We shouldn't regret about the past.
My grandfather has always taught me not to look BACK on what I once did. We shouldn't regret about the past.