9. This is the vision phone through 　　　　　　　　　　 　we can see and talk to our friends.

8. They work in a factory 　　　　　　　　　 　radio parts are made.

7. They work in a factory 　　　　　　　　　 　makes radio parts.

6. 1949 is the year 　　　　　　　 　the People’s Republic of China was founded.

5. Do you know the student 　　　　　　　　 　was praised at the meeting?

4. The film 　　　　　　　　　 　we saw the day before yesterday is very interesting.

3. This is the boy 　　　　　　　　 　father died three years ago.

2. The hospital 　　　　　　　　　　 　was built five years ago has been modernized.

1. This is the professor 　　　　　　　　 　taught me chemistry in 1980 .

10. April 15, 1976 is the day when we’ll never forget.