1.they were cleaning the room when I arrived 2.they must dry the beans in the sun 3.the foreman is showing the students around the factory 4.A Chinese official made paper from wood pulp in the year 105 5.people say the computer is one of the most important inventors 6.we haven't finished our homework yet 7.they will make the next meeting in Chicago 8.when did Lewis waterman invent the fountain pen 9.somebody clean the room everyday 10.john will collect me at the airport 11.your teacher must sign this form 12. will you invite her to your birtday party 13.we can't wear jeans at work

Cách làm:

1. Đổi thì của câu
2. Chia động từ
3. Sử dụng câu hỏi đuôi

Câu trả lời:

1. When did you arrive, they were cleaning the room.
2. The beans must be dried in the sun.
3. Are the students being shown around the factory by the foreman?
4. Paper was made from wood pulp by a Chinese official in the year 105.
5. Is the computer considered one of the most important inventors?
6. Have you finished your homework yet?
7. Will the next meeting be made in Chicago by them?
8. When was the fountain pen invented by Lewis Waterman?
9. Is the room cleaned everyday by somebody?
10. Will I be collected at the airport by John?
11. Does this form need to be signed by your teacher?
12. Will she be invited to your birthday party by you?
13. Can jeans be worn at work?

Ở đây, chúng ta đã sử dụng các cách làm đã nêu ở trên để trả lời cho câu hỏi.

Paper was made from wood pulp by a Chinese official in the year 105.

The foreman is currently showing the students around the factory.

The beans must be dried in the sun.

When I arrived, they were cleaning the room.