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Khi chủ ngữ trong câu chủ động là các đại từ bất định như someone, somebody, no one, everyone,... thì chuyển sang câu bị động ta có thể không cần thêm by O
Trả lời:
Trong những câu tiếng anh bị động, các objective (O) không xác định chúng ta có thể bỏ qua như: by them, by people….
Chúc bạn học tốt
Bài tập 5: Chia thì hiện tại hoàn thành và quá khứ đơn. (Bài tập nâng cao này sẽ giúp bạn nhận biết rõ về thì hiện tại hoàn thành và quá khứ đơn – đây là 2 thì nhiều bạn dễ bị nhầm lẫn nhất)
1. When……did …..you……design…..this wonderful skirt? (to design)
2. My mother………hasn't crashed…….into the van. (not/ to crash)
3. The boys……have taken off……..the mudguards of their bicycles. (to take off)
4.………Did …you……phone……your aunt last week? (to phone)
5. He………hasn't drunk………..milk at school. (not/ to drink)
6. The police……arrested……………two people early this morning. (to arrest)
7. She………went……to Japan but now she……has gone………back. (to go – to come)
8. Dan……has already bought………two tablets this year. (already/ to buy)
9. How many games………has your team won………so far this season? (your team/ to win)
10. Peter…………played…….. football yesterday.
11. They……have just washed….……the car. It looks new again.
12. Last year we………went …….. to Italy.
13. John and Peggy………have finshed………… the book. Now they can watch the film.
14. I………met…….. my friend two days ago.
15. We……have never gone………… another country before.
16. She……bought…….. a new car in 2011.
17. I’m sorry, but I……haven't done……… my homework.
18. .……?…….. the game of chess?
1. People made this skirt in Hong Kong.
This skirt was made in Hong Kong
2. Edison invented the electric light bulbs.
The electric light bulbs were invented by Edison
3. Everybody held an English-speaking contest at Nguyen Hue school yesterday.
An English-speaking contest was held at Nguyen Hue school yesterday.
4. They performed Christmas songs for people in towns and villages 800 years ago.
Christmas songs were performed for people in towns and villages 800 years ago.
5. People built a new supermarket here two months ago.
A new supermarket was built here two months ago
6. Her brother didn’t tell you the truth.
You weren't told the truth by her brother
7. Did Mr. Pike design this house in 1990 ?
Was this house designed by Mr Pike in 1990
8. Nobody saw a famous actor at this pub last night.
A famous actor wasn't seen at this pub last night.
1 were having
2 have known
3 was walking
4 had been running
5 had eaten
6 had eaten
7 was looking
1. Chia động từ trong ngoặc với thì Quá khứ hoàn thành và Quá khứ đơn
1.1. Almost everybody (leave)………had left………by the time we (arrive)………arrived……………
1.2. He (wonder)………wondered………whether he (leave)……had left………… his wallet at home.
1.3. The secretary (not leave)………didn't leave……………….until she (finish)………had finished…………her work.
1.4. The couple scarcely (enter)……entered…………… the house when they (begin)………began…………to argue.
1.5. The teacher (ask)……asked………… the boy why he (not do)………hadn't done………his homework.
1 woke up-had already prepared
2 heard-went-called
3 started-had already learnt
4. had alrady -crashed.
5. arrived-had
6. had never thougth .
7. had known -met
8 didn't know - had told
9.had been -began
10. sang-had played
11. had made-phoned
12. had riden- met
13. turned-had washed
14. arrived-had already started
15. had come-fed
16. had never seen-visited
17. had already began-got-qiuetly took
18.had already boarded-got
19.had done-went
20.had gone-sat-watched
1 woke up-had already prepared
2 heard-went-called
3 started-had already learnt
4. had alrady -crashed.
5. arrived-had
6. had never thougth .
7. had known -met
8 didn't know - had told
9.had been -began
10. sang-had played
11. had made-phoned
12. had riden- met
13. turned-had washed
14. arrived-had already started
15. had come-fed
16. had never seen-visited
17. had already began-got-qiuetly took
18.had already boarded-got
19.had done-went
20.had gone-sat-watched
Chủ động: S+V-ed/V3+O
=>S(là O bên trên)+were+V-ed/V3+by+...(S bên trên)
Ví dụ:
Câu chủ động: I washed these cars.
=> Câu bị động: These cars were washed.