Ex.1. Choose the correct tense.
1. While John was having / had breakfast his sister phoned from New York. 2. When I was seeing / saw his face I was realizing / realized the mistake. 3. Sue was writing / wrote a letter to her friend last night. 4. I was taking / took the umbrella because it was raining / rained. 5. She was wondering / wondered if she could take my calculator. 6. It was a cold winter night. It was snowing / snowed hard and we were wanting / wanted to get back home as quickly as possible. 7. While Helen was washing / washed her hair somebody rang the doorbell. 8. How were you feeling / did you feel yesterday afternoon? 9. When he was reaching / reached home he was receiving / received my telephone call. 10. Last summer they were swimming / swam every weekend. 11. We were singing / sang some songs and then were eating / ate some sandwiches. 12. While Nancy was washing-up / washed-up she was breaking / broke a cup. 13. What were you doing / did you do when I was phoning / phoned you last night? 14. I wasn’t seeing / didn’t see where the bus-stop, so I was missing / missed the bus. 15. We suddenly were realizing / realized that we were travelling / travelled in the wrong direction. 16. Why did you wake / were you waking me up? I was having / had such a wonderful dream. 17. I didn’t mean / wasn’t meaning to hurt you. I just was joking / joked.

Ex.2. Supply Past Simple or Past Progressive.
1. You (see) him this morning? – Yes, he (stand) in the hall laughing. 2. We (come) in and (see) Martha who (draw) a picture. 3. I (not, understand) what Mr. Smith (do). 4. Mike and Fred (drive) along the country all day yesterday. 5. She (bake) a cherry pie at 6 yesterday. 6. The businessman (fly) to England yesterday. 7. I (not, hear) what he (say) I (type) at the moment. 8. When it (happen)? – It (happen) when you (talk) to your friend. 9. We (walk) in silence for 5 minutes, then she (speak). 10. The train (strike) an obstacle on the line, but it (not, stop) because it (travel) too fast at the time. 11. He (not, like) to play while others (work). 12. Robert (watch) a football match on TV while Mary (sleep). 13. You (put) on the coat when the doorbell rang. 14. Meg (lie) in the sun while the children (play). 15. Where you (walk) when Greg (meet) you? 16. The driver (fall) asleep as he (drive) along. 17. The illness (get) worse and worse. 18. What you (do) between 9 and 10 yesterday? – I (clean) my house at that time. 19. I (not, understand) what (go on). Several people (shout) at me and one (wave) a newspaper in front of my face. 20. We (not, go) to the skating-ring because it (freeze) hard. 21. Ann (not, wear) her glasses at that time, so she (not, notice) us. 22. The only thing I (dislike) about her when we (study) at university was that she always (take) my things without asking!