语法突破：过去进行时跟踪练习用括号内所给动词的适当形式填空。 1. The Greens ________ (eat) lunch at noon yesterday.2. What ________ she ________ (do) at eight yesterday morning? 3. They ________ (clean) the classroom at this time yesterday.4. Jim and I ________ (sing) at nine o’clock last night. 5. While I ________ (watch) TV, he ________ (eat) dinner.6. It ________ (snow) at five yesterday afternoon. 7. The students ________ (listen) to the teacher carefully at that moment yesterday. 8. When I ________ (meet) him, he ________ (buy) things.9. The student ________ always ________ (help) others. 10. It was too late, but we ________ still ________ (walk) on.11. While she ________ (cook) dinner, I ________ (come) into the kitchen.12. ________ you ________ (sweep) the floor at nine o’clock yesterday morning?13. My brother ________ (work) at this time yesterday morning.14. What ________ they ________ (do) at this time yesterday morning?15. ________ the Whites ________ (watch) TV between 7:00 and 8:00 yesterday evening?16. It ________ (rain) heavily when I ________ (get) there last night.17. While the students of Class One ________ (do) some cleaning, we ________ (leave).18. The boys ________ (study) English when their mother ________ (go) out.19. When I ________ (see) him, he ________ (read) a newspaper.20. While he ________ (write), I ________ (do) my homework.参考答案1. were eating 2. was, doing 3. were cleaning 4. were singing 1 / 25. was watching, was eating 6. was snowing 7. were listening 8. met, was buying 9. was, helping 10. were, walking 11. was cooking, came 12. Were, sweeping 13. was working 14. were, doing 15. Were, watching 16. was raining, got 17. were doing, left 18. were studying, went19. saw, was reading 20. was writing, was doing 2 / 2
