Quá khứ đơn hoặc quá khứ tiếp diễn hoặc quá khứ đơn. 1. What (you/do) at this time yesterday? I was asleep. 2. How fast (you/drive) when the accident (happen)? 3. I havent seen my best friend for ages. When I last (see) him, he (try) to find a job. 4. I (walk) along the street when suddenly I (hear) footsteps behind me. Somebody (follow) me. I was scared and I (start) to run. 5. Last night I (drop) a plate when I (do) the washing-up. Fortunately it (not/break). 6. I (open) the letter when the wind (blow) it out of my hand. 7. The burglar (open) the safe when he (hear) footsteps. He immediately (put) out his torch and (crawl) under the bed. 8. As I (cross) the road I (step) on a banana skin and (fall) heavily. 9. Just as I (wonder) what I should do next, the acceptance letter came in my mailbox.