1.     Yesterday evening Tom ________ (have) a bath when the phone ________ (ring). He got out of the bath and ________ (answer) the phone. 2.     I ________ (see) Tony in the park. He ________ (sit) on the grass and ________ (read) a book. 3.     While I ________ (walk) in the garden, I _____ (hurt) my back. 4.     Tommy ______ (burn) his hand when he ________ (cook) the dinner. 5.     George ______ (fall) off the ladder while he ________ (paint) the ceiling. 6.     Last night, I ________ (read) in the bed when suddenly I ________ (hear) a scream. 7.     ________(you, watch) television when I phoned you? 8.     Ann _____ (wait) for me when I _______ (arrive). 9.     I _______ (not/drive) very fast when the accident _______ (happen). 10.                        I ________ (break) a plate last night. I ______ (do) the washing-up when it _______ (slip) out of my hand Exercise 2: Tìm lỗi sai và sửa 1. He was play badminton when I called him. 2. Was she study English at 8 p.m. yesterday? 3. What was he do while his mother was making lunch?  4. Where did you went last Monday?  5. He turn on the TV, but nothing happened.  6. She got up early and have breakfast with her family yesterday morning.  7. Hoa didn't broke the flower vase. I did.  8. Last weekend, my friend and I go to the beach on the bus. Exercise 3: Chọn đáp án đúng 1. They …… on the lake when it started to rain so they went home. A. finished B. finishing C. were finishing D. are finishing   2. Her dad found some money while she …… her suitcase. A. packing B. package C. are packing D. was packing   3. Your brother ……… in Myanma when he met his girlfriend. A. study B. was studying C. were study D. was study   4. His grandma tried cake for the first time while he ………. in China. A. staying B. is staying C. is stayed D. was staying   5. Her mom ………. in the park when she saw a tree. A. was going B. was going C. were going D. were going 6. ……. it ……. when I woke up this morning? A. Is….raining B. was ….. raining C. is….rain D. were…… raining   7. What …….. when his mother came? A. were you doing B. was you doing C. are you doing D. are you doing   8. What did you watch on TV while you …….. dinner last night? A. were having B. was having C. were having D. was having   9. The police ………. his letter in the post office at that time. A. is sending B. was sending C. sending D. was sending   10. It ………and cloudy when I left Ireland. A. was rain B. was raining C. is raining D. raining   Exercise 4: Hoàn thành đoạn hội thoại sau bằng cách điền vào chỗ trống dạng đúng của động từ Sue: ________________________ when you saw them? (what | Tim and Matt | do) (1) Julie: Tim was swimming in the pool, but I didn’t see Matt first. Sue: __________________ in the pool, too? (you | swim) (2) Julie: No, I wasn’t. I was just looking. But then I saw Matt, too. Sue: ________________________ ? (what | he | do) (3) Julie: He was diving in the pool. Sue: Diving, you say ________________________ to dive? (he | not | just | try) He can’t dive. (4) Julie: You’re right. He was just trying to do it. And all his friends were watching it. Sue: ________________________ ? (they | laugh) (5) Julie: Of course, they were. Matt was pretty funny. He splashed the water all over the place. Sue: _____________________ faces when he came up to the surface of the pool? (Matt | make) (6) Julie: Yes, he was. He was grinning and making faces at me. Sue: At you? Vow! And what about Tim? __________________ Matt, too? (he | watch) (7) Julie: Not really. He was looking at me instead. Sue: Oh, no! You’re kidding. ___________________ your new swimsuit? (you | wear) (8) Julie: Yes, I was. Why? Sue: Now I know why Tim and Matt were watching you, Julie.