1. was listening / heard
2. was watching / were playing
3. saw / was cycling
4. was not shopping / phoned

1. was listening / heard

2. was watching / were playing

3. saw / was cycling

4. was not shopping / phoned

1 was

2 stood

3 noticed

4 ran

5 picked him up

Exercise 2:
1. Peter was playing a video game when his brother, Jack, entered the room.
2. I was studying for my English test when my mother came home from work.
3. Emma was washing the dishes when the telephone rang.
4. I was eating a sandwich while my parents were drinking coffee.
5. I was watching a DVD when my cat jumped on me.
6. Susan was studying in her room when she heard the noise.
7. What were they doing at eleven p.m. last night- it was so noisy?
8. I was eight years old when my elder sister taught me how to ride a bike.
9. John didn't go to school last week because he was ill.
10. I didn't know anything about the plane crash in my neighborhood because I was working inside at that time.

Exercise 3:
1. This dish is brought to me by the waiter.
2. These postcards are sent to us by our friends.
3. Are you told this story every day before bedtime by your grandma?
4. Her ticket is being shown to the airline agent by her.
5. Are these boxes being handed to the customer by the shop assistant?
6. This room is kept tidy all the time by them.
7. Our furniture is being moved to our new house by us.
8. A new bridge is being built in town by them.
9. How is this amount of money spent by you?
10. When is the bike taken back to the store by him?

Exercise 2: Put the verbs into correct forms using The past simple tense or The past continuous tense
1. Peter (play)...............was playing.........a video game when his brother, Jack, (enter)...........entered..........the room.
2. I (study)............was studying.........for my English test when my mother (come)..............came..........home from work.
3. Emma (wash).............was washing...........the dishes when the telephone (ring).............rang...........
4. I (eat)..................was eating......a sandwich while my parents (drink)...............were drinking.........coffee.
5. I (watch)..........was watching..............a DVD when my cat (jump).........jumped...............on me.
6. Susan (study)...............was studying.........in her room when she heard the noise.
7. What they (do).............were they doing...........at eleven p.m. last night- it was so noisy?
8. I was eight years old when my elder sister (teach)............taught............me how to ride a bike.
9. John (not go)...........didn't go.............to school last week because he was ill.
10. I didn’t know anything about the plan crash in my neighbourhood because I (work)............was working.........inside at that time.

Exercise 3: Change the sentences into passive voice
1. The waiter brings me this dish.
...........I was brought this dish by the waiter..............................................................................................................................
2. Our friends send these postcards to us.
..................These postcards were sent to us by our friends.......................................................................................................................
3. Does your grandma tell you this story every day before bedtime?
..............Are you told this story by your grandma every day before bedtime?...........................................................................................................................
4. She is showing her ticket to the airline agent.
....................The ticket is being shown to the airline agent by her...................................................................................................................
5. Is the shop assistant handing these boxes to the customer?
........................Are these boxes being handed to the customer by the shop assistant.................................................................................................................
6. They keep this room tidy all the time.
...................This room is kept tidy all the time......................................................................................................................
7. We are moving our furniture to our new house.
..............Our furniture is being moved to our new house by us...........................................................................................................................
8. They build a new bridge in town.
....A new bridge is builr in town.....................................................................................................................................
9. How do you spend this amount of money?
.......How is this amount of money spent?..................................................................................................................................
10. When does he take the bike back to the store?
...........When is the bike taken back to the store by him?..............................................................................................................................

Complete the text with past simple or past continuous forms of the verbs in brackets.A terrible trip!On the day of the school trip 1 (1)....i woke up....(wake up) as usual at 8 o'clock to go to school (2).....I was leaving.....(leave) the house when I realised I(3)....did not have.....(not have) my sandwiches, so I (4)........ran.....(run) back inside. I(5)......set off...(set off) again and I....was walking......(6)........(walk) along the road when suddenly it (7)....started......(start) to rain. At that moment, my friend Alice (8)......was coming...(come) past in her mother's car and they (9).......stopped....(stop) to pick me up. The excursion (10)...was.....(be) to the wildlife park about 15 minutes from our town. When we (11)....arrived....(arrive) at school the bus was waiting outside, so we (12) ........got on.........(get on) and sat downAlice and I (13).......were talking..(talk), so we (14).....did not notice..(not notice) the other students on the bus. Half an hour later we (15)...looked...(look) out of the window.We (16).....were...(be) at the museum, not in the park! We looked at the other people around us and we (17).saw........(see) they were from another class. It (18)..was......(be) the wrong bus! giúp mình vs ạ 

1. Mr. Brown (come) came home as soon as he (finish) had finished his work.

2. I (live) had lived in Texas for 4 years before I (move) moved California.

3. When Mr. Smith (wake) waked yesterday morning, breakfast (already be) have already been ready.

4. Before I (get) got promotion, I (work) had worked very hard.

5. Yesterday, my mother (pick) had picked me up from school before we (go) went shopping together.

6. Our grandparent (tell) told us that he (serve) had served in the army in 1945.

7. After having dinner with my boyfriend, I (go) went home.

8. Yesterday (be) was the first time Jane (perform) performed in front of such large audience.

9. Peter (admit) admitted he (break) breaking my favorite vase the day before.

10. What had you done (you/do) before you (come) came there?

11. Yesterday I (feel) felt nervous as I (not prepare) didn't prepare my presentation carefully.

12. Did Peter come (Peter/ come) to see you after he (finish) had finished his work?

13. Mary (prepare) had prepared the meal before she (invite) invited her new neighbor to have lunch with her.

14. Before I (buy) bought a car, I (travel) had traveled by bus for nearly 5 years.

15. As soon as Jane (see) had seen Jim, she (storm) stormed out of the room.

Đáp án: will/shall call

1 had happened

2 had been

3 hadn't finished

4 had sent

5 had received 

6 had already written

7 hadn't arrived 

8 had phoned

9 had agreed

10 had left

Yesterday morning I checked what (happen)1 ……had happened……………… while I was away. They told me that there (be)2 ……had been……………… no major problems. Alice explained that she (not finish)3 …hadn't finished………………… the drawings until last Friday but she (send)4 …had sent………………… them to the client on Monday. Phil reported that he (received)5 ………had received …………… the insurance proposal on Monday and that he (already / write)6……had alreaoldy written……………… a reply. David told me that the new photocopier (not arrive)7…hadn't arrived………………… but he (phone)8 had phoned…………………… Jacksons to remind them that they (agree)9 …had agreed………………… to deliver it this week. I told you before I went that I (leave)10 ……had left……………… instructions for my staff and you can see that they have worked well.

1 : This time last year I___was living__(live) in Brazil.

2 : What you___were you doing__(do) at 10:00 last night?

3 : At that time yesterday, I___was writing__(write) a letter.

4 : She__was learning___(learn) English at school at 7:45 yesterday morning.

5 : - What you___were you doing__(do) at this time last night? - I was asleep.

6 : Matt burned his hand while he_was cooking ____(cook) lunch.

7 : I saw you in the park yesterday. You___were sitting__(sit) on the grass and ___reading__(read) a book.

8 : When I came home, my mother__was preparing___(prepare) the meal.

9 : Jane__was waiting___(wait) for me when I arrived.

10 : Yesterday evening, while my mother__was cooking___(cook) in the kitchen, my father____was watching_(watch) the news on TV.

11 : Just as I___was leaving__(leave) the house, I heard an explosion from the inside the lab.

12 : When Beth arrived, we__were having___(have) dinner.

13 : Why didn’t you listen to me while I (talk)__was talking___with you?

14 : Michiko couldn’t come to the phone when the director called her because she__was working___(work) in the factory.

15 : I____was enjoying_(enjoy) the party, but Chris wanted to go home.