làm bài xác định thì đúng ( WHILE ,WHEN)

Sure! Here are the answers to your exercise questions: **Exercise on Identifying the Correct Tenses (WHILE, WHEN):** 6. A. was walking 7. B. experienced 8. D. at 9. B. receives **Fill in the Blanks with Past Continuous Tense:** 1. I (make) **was making** a presentation when the microphone (stop) **stopped** working. 2. When I (finish) **finished** school, my family (live) **was living** in the countryside. 3. My dad first met my mum when he (visit) **was visiting** Hoi An Ancient Town. 4. Tom had a nightmare while he (sleep) **was sleeping** in the camp by the old castle. 5. David hurt his foot while he (go) **was going** down the steps of the pagoda. 6. Mary and I **were dancing** the house when the telephone rang. 7. **Were** you (watch) **watching** TV at 9 p.m. last night? 8. The rain (start) **started** while we (sit) **were sitting** on the beach. 9. Daisy (fall) **fell** on the ice while she (skate) **was skating** with friends. **Choose the Correct Tenses of Verbs:** 1. I **saw** the accident when I was waiting for the taxi. 2. What **were you doing** when I phoned? 3. They **didn't visit** their friends last summer holiday. 4. It **rained** heavily last July. 5. While people **were talking** to each other, he **was reading** his book. 6. Chris **ate** pizza every weekend last month. 7. While we **were running** in the park, Mary fell over. 8. Did you **find** your keys yesterday? 9. Who **was she dancing** with at the party last night? 10. They **were watching** a football match on TV at 8 o'clock last night. **Fill in Each Blank with the Correct Form of the Verb in the Past Continuous:** 1. They (have) **were having** a discussion about natural disasters at 9 a.m. yesterday. 2. **Were** you (talk) **talking** with your classmates when the teacher came in? 3. While my mother (water) **was watering** the flowers in the garden, she heard a warning about the coming storm. 4. My brother (not do) **was not doing** his homework at 8 p.m. yesterday. He (play) **was playing** computer games. 5. We (watch) **were watching** news on TV when we heard a big noise. 6. I **was not listening** when you gave the presentation. 7. The young teenager **was surfing** when a shark attacked her. 8. Where **were you going** at 7.30 last night? 9. What **were you doing** when the volcano erupted? - I was sleeping in my bed. 10. While the workers **were saving** others, they also had to consider their own lives. 11. The children wish they (get) **got** more presents every Christmas. 12. I wish I (have) **had** enough money to visit London and Windsor Castle. 13. Do you wish we (have) **had** a swimming pool in our school? 14. I wish I (have) **had** more time to play outdoors with my friends. 15. We wish we (can spend) **could spend** our summer holiday on the seaside. 16. I wish I (can go) **could go** back to my grandparents' time. 17. Jenny wishes she (have) **had** her own room. 18. Jenny wishes her sister Jane (spend) **would spend** less time playing computer games next week. 19. My brother wishes he (can attend) **could attend** the traditional festival of minority people in Viet Nam.