1 I [go] ...... down the street when it began to rain 2. at this time last year .I [ attend ] ....... an english course 3. jim [ stand ] ....... under the tree when he heard an explosion 4. the boy fell and hurt himself while he [ ride ] ........ a bicycle 5. the tourist lost his camera while he [ walk ] ....... around the city 6. the lorry [go] ...... very fast when it hit our car 7. while I [study] ...... in my room , my roommate [ have] a party in the other room 8. we [ sit] ....... in the cafe when it his our car