раскройте скобки употребляя глаголы в форме present simple past simple или past continuous
Once, while i (to walk) in a park of london, i (to see) an old man.
he (to sit) on a bench holding a book in his hands.
i (to see) that the book (to be) of great interest.
it (to be) a very old copy of early Byron's works.
i (to look) at the old man and (to understand) that he (to know) that i (to sit) because of him and the book.
i (to smile).
"it is the last i (to have)", he (to say) and (to stretch) it out to me.
i (to open) the book and (to look) at the date: it ( to be) a remarkable book.
"i (to have) a hard life and this book (to be) a comfort to me. But i have to sell it," (to say) the old man.

was walking.saw. was sitting. saw.was.was.lokeed.understood.knew.was sitting.smaled.have.said.streched.apened. looked. was. have. is.said

Was walking SawWas sitting Saw WasWasLooked Understood KnewHad satSmiledHaveSaid Stretched OpenedLookedWasHave hadHas always been Said