I.
1. English is spoken all over the world.
2. Rice is grown in tropical countries.
3. Our house is often decorated before New Year's Day.
4. Students are expected not to talk during the class.
5. Millions of kilos of waste paper are thrown away every day.
II.
1. This shirt was made in Hong Kong.
2. My father was phoned to pick me up this morning.
3. A new supermarket was built here two months ago.
4. The unidentified flying objects were seen last night.
5. Two difficult questions weren't answered yesterday.
PRESENT PERFECT
1. All the assignments have been finished already.
2. A new style of jeans have just been introduced in the USA.
3. He hasn't been taken to the theater.
4. All the 23rd Sea Games competitions have been broadcast.
5. Gasoline price has been increased by 15% by the government.
III.
1. A new house could be bought by my father next year.
2. The door of the room couldn't be opened this morning.
3. David may be elected their monitor by the students in my class.
4. Some interesting places might be visited by the athletes after Sea Games.
5. The high way from north to south will be completed next year.
*Cấu trúc:
S+V+O+(trạng từ chỉ nơi chốn)+(trạng từ chỉ tgian)
=> S(O)+be+P2+(trạng từ nơi chốn)+by+O(S)+(trạng từ tgian)
*Notes:
- Tân ngữ của câu chủ động là people/ they/ someone/ somebody/ we/ ... thì chuyển sang bị động có thể bỏ đi.
- Adv tần suất "always/ often/ ..." đặt sau "tobe" và trước V.
- Adv tần suất "everyday/ once a week/ ..." đặt trước "by+O"