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1/
1. The new highway from north to south will be completed.
2. This sweater was made for her son by my aunt.
3. We are taught grammar and writing by her.
4. Lan's friends are going to be invited to her birthday party.
5. The electric light bulb was invented by Thomas Edison.
6. The thief has just been caught by the police.
7. My sister may be offred a job by the IBM company soon.
8. Food should be kept int he refrigerator to keep it fresh.
9. The door of the classroom couldn't be opened by Lien.
10. The scientific book has to be returned to the library by Phong.
11. Papers written in pencils won't be accepted by the teacher.
12. Their new plan is being discussed by the students.
13. Can the problem be solved just in two minutes by her?
14. What are used for making butter and cheese?
Ex6/
1. is often taken
2. was repaired
3. will your house be rebuilt
4. hasn't been fixed
5. has written/met
6. has just been opened
7. is talking/haven't contacted
Ex7/
1. We started learning English four years ago.
2. My father has given up smoking since last year.
3. They started working in that factory in 2001.
