Раскройте скобки употребив Past Simple - Past Continuous
1. As he (get) into the bus it (start) suddenly and he (fall) backwards on to the road.
2. When i (hear) his knock i (go) to the door and (open) it, but i (not recognize) him at first because (he wear) the glasses.

умно

1.as he get into the bus it start suddenly and he falls backwards on to the roard2.when i hear his knock i go to the door and open it, but i not recognizes him at finish because he wears the glasses